Shield Arms S15 Glock 43X/48 pre order open

[Up1911Fan]

Just pre ordered 2 of the 15 round mags to try, and yes, they have an aluminum mag catch for them, got that too. If these prove reliable, and I can vet a Shield or Sig RomeoZero to be ccw reliable, I can see this combo taking over a lot of carry time. That's a lot of if's, but we'll see.

[RJ]

Will follow with interest.

Just picked up a 43X today.

[Dcowboyscr]

Keep hitting the pre-order button and nothing happens!

[Mike C]

Keep hitting the pre-order button and nothing happens!

Be patient, website is probably taxed pretty hard. I was able to order 4 and 2 mag release buttons. I can't wait to get my hands on these to evaluate. I am presently stacking up a stock 43X to a comped one. With 15 rounds on board it should make for an interesting package.

[Dcowboyscr]

Be patient, website is probably taxed pretty hard. I was able to order 4 and 2 mag release buttons. I can't wait to get my hands on these to evaluate. I am presently stacking up a stock 43X to a comped one. With 15 rounds on board it should make for an interesting package.
I finally figured it out. It wasn’t showing anything in my cart until I actually went to the cart and looked.

[spyderco monkey]

https://www.ar15.com/media/mediaFiles/445788/7BC3C2F3-CCC6-4AB9-83D9-3669DB6D7592-1089282.png

https://shieldarms.com/glock-43x-48-15-round-mag

[Lost River]

IF these prove to be reliable, this could give Sig some competition.

[YVK]

I preordered too. Don't know if it would be able to close the gap size with my 365XL or have optic mounting options of G19, but a reliable 15 rounder for my G48 would be awesome.

[RJ]

This is on-topic, just bear with me.

We toured through the Flathead Lake MT area two years ago in the RV. We camped for a week or so at Lakeside, and took a few driving tours to the area. We had lunch in the Echo Lake Cafe and then explored Big Fork, a small town in the area. That's the front right corner of my Dodge Ram 2500 in the picture:

42531

...I was interested in this magazine so I clicked through only to find the address for Shield Arms is listed as...Bigfork Montana. Which I thought was kinda cool since I'd been there. :)

[Tensaw]

If you've ever pre-ordered magazines for a pistol you don't even own.... you might be a member at Pistol-Forum.... :cool:

[Bucky]

If you've ever pre-ordered magazines for a pistol you don't even own.... you might be a member at Pistol-Forum.... :cool:

If you’ve ever preordered magazines for multiple pistols you don’t even own, it might be September 14, 2004.

[Bucky]

Will follow with interest.

Just picked up a 43X today.

I might have come home with a 48 today, but they were out of stock. :(

[Dismas316]

Man I hope these prove to reliable. Pretty skeptical but went and ordered 2 anyway. I should know better than to be a beta tester but sometime just want to get lucky. If these work, they likely will be in strong demand for a while and doubtful they can keep up with production early on.

[Gun Mutt]

...I am presently stacking up a stock 43X to a comped one. With 15 rounds on board it should make for an interesting package.

Very interested in hearing how the comped 43x runs!

[Mike C]

Very interested in hearing how the comped 43x runs!

I will start a whole thread on it once I have some more comparative data. So far I've only had the time to run Gabe's standards and The Test uncomped for baseline. I am going to add some F.A.S.T. times and maybe a few other metrics. I hope to have some range time in a few days to run the Agency Arms comp and then the Griffin Armament one. Once I have some real data and put my thoughts together as to why and what gains there are to be had it should make for some interesting conversation.

[Bigghoss]

If you’ve ever preordered magazines for multiple pistols you don’t even own, it might be September 14, 2004.

#IWasThere

If these work I'm getting a 48 or a 43X. Not sure what I'd do with my 19's after that though. In either case I'm still hoping Glock makes a G43 with a wider grip.

[spyderco monkey]

Not the Shield arms, but there have been several successful experiments with double stack mags in the G48 on Arfcom, which bodes well for the Shield mags. At a minimum, it shows that the G48 can accept a true double stack metal magazine.

https://www.ar15.com/forums/Handguns/Glock-43X-48-Shield-Arms-15-round-mags-flush-fit/13-187683/?page=9

This is a 15rd mag made from the steel liner of a G17 mag:
https://www.ar15.com/media/mediaFiles/173129/92194CBC-208B-472B-8282-961971C10C51-1071811.jpg

G17 Mag liner vs a P365 15rd mag:
https://www.ar15.com/media/mediaFiles/173129/D70E486F-A6CC-4390-9ABB-DD3394EAE1CA-1080538.jpg

And a modded CZ75 Mag:
https://imgur.com/gallery/eU34fZe

[t1tan]

Anxious to see reviews on these while I wait for the railed 43X to come to the US

[Bucky]

Not the Shield arms, but there have been several successful experiments with double stack mags in the G48 on Arfcom, which bodes well for the Shield mags. At a minimum, it shows that the G48 can accept a true double stack metal magazine.

https://www.ar15.com/forums/Handguns/Glock-43X-48-Shield-Arms-15-round-mags-flush-fit/13-187683/?page=9

This is a 15rd mag made from the steel liner of a G17 mag:
https://www.ar15.com/media/mediaFiles/173129/92194CBC-208B-472B-8282-961971C10C51-1071811.jpg


Clever!

[philpac33]

When I first saw that preorder was open yesterday I resisted the impulse purchase, figured I’d wait to see how well they work. I made it until the late evening before I had preordered the 3 magazine/mag release bundle for my 43x. The 43x/48/365 guns are being called game changers, a reliable 15 rounder in those guns turns the game on it’s head!

[23JAZ]

I preferred one on Friday. I did not order the aluminum mag release. Should I have and if so why?

[Grey]

I preferred one on Friday. I did not order the aluminum mag release. Should I have and if so why?Probably yes because the mag release is polymer and is interacting with a alum mag catch so it will get chewed up eventually.

Thats my uninformed guess.

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[AKDoug]

Now we need them to make 21 round mags for G19’s that are flush [emoji869]


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[t1tan]

Probably yes because the mag release is polymer and is interacting with a alum mag catch so it will get chewed up eventually.

Thats my uninformed guess.

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I asked them about wear on the OEM release vs the magazines themselves a few weeks ago and their answer was there hasn't been any problems with wear, they just did the aluminum for those that worry about it.

[Up1911Fan]

I definitely feel better about a metal mag catch with metal mags.

[RAM Engineer]

I definitely feel better about a metal mag catch with metal mags.

I’d rather have to replace a worn polymer mag release due to wear on it than a polymer frame from wear due to a metal mag catch. Likely? No, but we’re talking about small probabilities either way.

[PD Sgt.]

I definitely feel better about a metal mag catch with metal mags.

That was my first thought too, then I thought about my M&Ps, my P07s, and my P2K and figured it was not as great of an issue perhaps. Plus I would worry more about damage to the frame from the catch as stated above.

[JodyH]

I’d rather have to replace a worn polymer mag release due to wear on it than a polymer frame from wear due to a metal mag catch. Likely? No, but we’re talking about small probabilities either way.
During the *spit* Clinton '90's AWB full capacity factory Glock mags were scarce so many people used aftermarket steel mags that weren't as scarce (for the range, they had terrible reliability).
Steel mag catches were mandatory because the steel body magazines did chew up the mag releases (FYI the steel mag release would chew up the plastic magazine retention notch on the mags) never had an issue with the steel release wearing on the frame.

Just a note from experience.
Steel or aluminum on steel.
Plastic on plastic.
Any other combination resulted in the softer polymer getting chewed up, whether it was the mag or the release.

[23JAZ]

During the *spit* Clinton '90's AWB full capacity factory Glock mags were scarce so many people used aftermarket steel mags that weren't as scarce (for the range, they had terrible reliability).
Steel mag catches were mandatory because the steel body magazines did chew up the mag releases (FYI the steel mag release would chew up the plastic magazine retention notch on the mags) never had an issue with the steel release wearing on the frame.

Just a note from experience.
Steel or aluminum on steel.
Plastic on plastic.
Any other combination resulted in the softer polymer getting chewed up, whether it was the mag or the release.
Thank you. Aluminum release added to order. Now hopefully these mags will be reliable so I can order a few more.

[Up1911Fan]

That was my first thought too, then I thought about my M&Ps, my P07s, and my P2K and figured it was not as great of an issue perhaps. Plus I would worry more about damage to the frame from the catch as stated above.

I don't see frame damage happening. I can see mag catch wear dumping a mag on the ground under recoil.

[Grey]

Just bought a 3pack combo... guess I better gey a 43x...

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[MSparks909]

Hopped on the bandwagon and ordered a 3 pack combo as well. Guess I better order a Gadget for my G48 while I’m at it :cool:

[Balisong]

I have no interest in a G43x/48.

That will drastically change if these mags prove reliable.

[CalAlumnus]

I'm very, very tempted by this. Almost placed an order, but then read the description: "first production run." Of course I knew it was the first production run, but seeing it in print convinced me to hold off. No need to be a beta tester.

BTW, rumors on another site indicate that these mags are actually manufactured by Mec-Gar. If true, that would make me feel a lot better about them.

[4gallonbucket]

I ordered the 3pack plus mag catch. Also have a gadget for a 43x or 48 I’ve yet to acquire. Was waiting for the black slide. Now maybe waiting for the light rail. I’ll get what’s available when my mags show up.


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[JodyH]

Good luck all.
No way in hell would I be the beta tester on new steel Glock mags, BTDT going back to 1991 with 100% failure rate.
There's just something about the Glock mag design that nobody has ever been able to replicate.

[Grey]

Good luck all.
No way in hell would I be the beta tester on new steel Glock mags, BTDT going back to 1991 with 100% failure rate.
There's just something about the Glock mag design that nobody has ever been able to replicate.Considering that its almost 30 years later, willing to give it a shot [emoji23]

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[Up1911Fan]

Good luck all.
No way in hell would I be the beta tester on new steel Glock mags, BTDT going back to 1991 with 100% failure rate.
There's just something about the Glock mag design that nobody has ever been able to replicate.

I'm sceptical, but for a $100, willing to give ot a shot.

[CanineCombatives]

All the other poly strikers are running metal mags with 100% reliability, why is this a stretch?

[Olim9]

Once these start arriving, what will be everyone’s vetting process for these things?

[JodyH]

All the other poly strikers are running metal mags with 100% reliability, why is this a stretch?
On my M&P, PPQ and H&K's the mag release levers are a polymer/steel combination.
The paddles/button are polymer but the surface that actually engages with the steel magazine body slot is steel.
On Glocks the entire mag release is polymer.
When the sheetmetal magazine body is repeatedly bounced down onto the top of a polymer magazine release by the action during cycling, the knife edge of the sheetmetal magazine slot cuts into the polymer mag release which starts to cause assorted issues from the mag release being very difficult to press to feed issues because the magazine isn't held at the right height anymore.
Plastic Glock magazines used with a steel or aluminum mag release have the opposite issue, the mag slot gets chewed up and the magazine won't stay in place.

It's not the polymer frame that's the issue it's the construction of the magazine release.

[JodyH]

Considering that its almost 30 years later, willing to give it a shot.
Magpul, ETS and the mighty Korean military industrial complex can't make a Glock magazine that's as reliable as a Glock magazine.
Many have tried, all have failed.

[CanineCombatives]

So order their aluminum release and have peace of mind?

[psalms144.1]

So order their aluminum release and have peace of mind?Until the same forces mashing an aluminum catch into the cutout in the frame causes frame damage/deformation.

Not saying it's a for sure problem with the design, I'd just hate to ruin a frame on a whim. All said, I'll wait and see how these things work out in the long run...

[YVK]

Once these start arriving, what will be everyone’s vetting process for these things?

I'll take one of two mags, install metal mag button, and shoot the shit out of it with a hot ammo. I'll still carry the polymer mag.

[Tensaw]

Once these start arriving, what will be everyone’s vetting process for these things?

My plan is to hope that GJM gives these a go. If he is as hard on these as he is on optics, we should know within about a day and a half if they are good to go... Bwahahahahaha!!!!

[YVK]

My plan is to hope that GJM gives these a go.

He says metal glock mags are incompatible with his optic sights, too much magnetism or something. We're on our own with this one round of beta-testing.

[GJM]

As I have said previously, the Glock magazine is integral to how a Glock pistol functions, and as a result, I have zero interest in being a beta tester for non OEM magazines, especially ones as different as these. While six cartridges in a 43 magazine always made me feel it was almost a revolver, ten in a 43X/48 seems sufficient, and I value reliability above capacity. If a few years from now, they turn out to be as reliable as OEM, I will take another look. :)

[Mike C]

Damn it the logic in this thread is killing me. I am going to have to cancel my order. :( Oh well, I hate aftermarket shit in my guns anyways. I can't believe I've been messing with an aftermarket barrel/comp with one of my guns. Must've been the gateway drug. Maybe I need to go to shooter rehab.

[YVK]

and I value reliability above capacity



Hence the choice of 365XL for a carry gun, with 12 rounds stuffed into a matchbox of a magazine, with which you're effectively doing the beta-testing, for which I am very grateful since I have one chilling in my safe too.
Unless we think that SIG actually tested that one, in which I case I apologize to all SIG fans for the insensitive content I have just posted.

[Bucky]

Regarding the notion of the Glock magazine being the holy grail of pistol magazines, I find it ironic for a magazine that in it’s earliest inclination has gone through three or more generations of body designs, and 9 or more follower redesigns.

[JodyH]

Regarding the notion of the Glock magazine being the holy grail of pistol magazines, I find it ironic for a magazine that in it’s earliest inclination has gone through three or more generations of body designs, and 9 or more follower redesigns.
The holy grail of double stack pistol magazines are the steel bodied H&K P series magazines.

[GJM]

Regarding the notion of the Glock magazine being the holy grail of pistol magazines, I find it ironic for a magazine that in it’s earliest inclination has gone through three or more generations of body designs, and 9 or more follower redesigns.

If you are responding to my post, what I said was the magazine is integral to the functioning of a Glock pistol, which is different than the OEM Glock magazine being the holy grail of magazines. The advantage of the OEM magazines is they are tested by the manufacturer and then by the public at large, since that is what most people use.

You need to flip your follower, as the number is 6, not 9. The 9 mm follower has been the same for what twenty years, unless you count making it orange as a change?

[Trukinjp13]

Regarding the notion of the Glock magazine being the holy grail of pistol magazines, I find it ironic for a magazine that in it’s earliest inclination has gone through three or more generations of body designs, and 9 or more follower redesigns.

H&K = King

To be fair to Glock, they have been around for a long time. Sometimes change is necessary. The pistols themselves have evolved, the magazines should as well.


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[MSparks909]

Damn it the logic in this thread is killing me. I am going to have to cancel my order. :( Oh well, I hate aftermarket shit in my guns anyways. I can't believe I've been messing with an aftermarket barrel/comp with one of my guns. Must've been the gateway drug. Maybe I need to go to shooter rehab.

Why? I’d keep your order. I’m gonna shoot about 1,000 rounds through the mags and if all goes well I’ll start carrying with these mags and buy more. If they don’t work 100% I’ll use them as range mags.

[JHC]

As I have said previously, the Glock magazine is integral to how a Glock pistol functions, and as a result, I have zero interest in being a beta tester for non OEM magazines, especially ones as different as these. While six cartridges in a 43 magazine always made me feel it was almost a revolver, ten in a 43X/48 seems sufficient, and I value reliability above capacity. If a few years from now, they turn out to be as reliable as OEM, I will take another look. :)

+1. Less than zero interest here.

[psalms144.1]

I won't lie and say I wouldn't like more rounds in EVERYTHING I carry, but I'll take lower capacity OEM over untested new hotness increased capacity anytime. I get it, I really do, the idea of a 15+1 shot G43X or G48 is very attractive, but, I'm not going to booger up my guns testing to see if the new stuff works and doesn't cause damage to the pistol. I'm very glad there are a bunch of folks who are more trusting and are going to wring these out - if a good selection of PF regulars shoot a couple of cases through these with no damage to the pistols and full reliability, then I'll be down for a couple. Until then, I'll be back here with my popcorn. And STAY OFF MY LAWN!

[JodyH]

I've spent more money on dumber shit than these magazines that's for damn sure.
:p

But i've given up on chasing a better mousetrap when it comes to Glocks because i've never been able to build one out of aftermarket parts.

[Mike C]

Why? I’d keep your order. I’m gonna shoot about 1,000 rounds through the mags and if all goes well I’ll start carrying with these mags and buy more. If they don’t work 100% I’ll use them as range mags.

Because at the end of the day as GJM stated, I value reliability above all. I've never been one to seriously booger with a gun. I have once with a P2000 and managed to reinstall an elbow spring incorrectly. I will never forget that lesson. I trust aftermarket as much as my gunsmithing/part swapping skills and though I really, really want a G43X with 15 rounds I don't think I want to make the possible trade off. Especially since I can't really put enough rounds in it to truly feel confident over multiple samples I think I'll just pass. Besides if I wanted potentially unreliable I'd just carry a Sig and no, I won't apologize like YVK. YVK has some class I don't.

[GJM]

Because at the end of the day as GJM stated, I value reliability above all. I've never been one to seriously booger with a gun. I have once with a P2000 and managed to reinstall an elbow spring incorrectly. I will never forget that lesson. I trust aftermarket as much as my gunsmithing/part swapping skills and though I really, really want a G43X with 15 rounds I don't think I want to make the possible trade off. Especially since I can't really put enough rounds in it to truly feel confident over multiple samples I think I'll just pass. Besides if I wanted potentially unreliable I'd just carry a Sig and no, I won't apologize like YVK. YVK has some class I don't.

YVK is definitely high class. His sense of humor is more of an acquired taste though.

[Bucky]

The holy grail of double stack pistol magazines are the steel bodied H&K P series magazines.

Hard to argue with that. :)

[Trukinjp13]

I would be more excited with a factory Glock extended mag or base plate. Hell even if Magpul would make a 12/13 rnd mag for it. Not saying Magpul would be a perfectly reliable carry mag. But for range days and what not.




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[WobblyPossum]

I too am hesitant to be an early adopter of these mags. I’ll wait until I see some reports of high round counts with numerous magazines before I place an order. However, if these do prove to be reliable, I’ll definitely Italy snatch up a few.

[YVK]

I too am hesitant to be an early adopter of these mags. I’ll wait until I see some reports of high round counts ...

Given almost universal skepticism about these mags from forum members whose opinion I hold in a high esteem, I wonder if I should just keep my observations to myself.



File that under the category below


YVK .... sense of humor is more of an acquired taste though.

[JodyH]

If the rumors of them being manufactured by Mec-Gar are true I'd be much less hesitant to toss $100 down the rabbit hole.
When the first few magazines roll out to the public I hope they're stamped "Made in Italy".

[CWM11B]

I ordered one to see how it will run. If decent, I'll have a couple, but wont buy a bunch.

[Bucky]

Well, I ordered my G48 today, so I'm one step closer.
:)

[vaglocker]

So, these were supposed to start shipping at the end of October. Anybody receive anything yet? My order is still showing as "processing".

[Up1911Fan]

Not yet.

[CWM11B]

Nope. No mag, no comms, nada. And I haven't seen an email blast from them in a while, and those used to be weekly. I'll cut them a little slack for teething issues, but if nothing in a couple of weeks, I'll be reporting bv them to my CC company.

[vaglocker]

Just got a Facebook message from Shield Arms stating mags should arrive from manufacturer this week and ship immediately after. We shall see.

[Up1911Fan]

Short delay, the first batch shipped with the wrong finish. They said next batch exected next week.

[Magsz]

Man,

You guys worry about ridiculous shit...

Ive been running aluminum extended catches in my guns for years now without any issues. I've run the same five training mags for the past three years and have over 80K rounds between those five mags.

I have yet to ruin a frame, ruin a magazine catch or a magazine.

Yes, polymer is softer than metal. We've been running pmags for how many years now with metal mag catches? Ive personally "broken" a shit ton of M2 pmags by over inserting them" and ruining the retention tabs. They still run.

What the hell power factor ammo are you running through a gun to ruin a frame via twisting or torquing of the mag release in the frame? That's absurd.

If you dont want to ruin your gun, fine, dont buy the mags but to trash a product before its even out with phantom bullshit "cry wolf" hysteria, is just lame. Lets give them a shot and see if they work. If they're garbage, then they're garbage and Shield Arms will fail.

[Bucky]

If you dont want to ruin your gun, fine, dont buy the mags but to trash a product before its even out with phantom bullshit "cry wolf" hysteria, is just lame. Lets give them a shot and see if they work. If they're garbage, then they're garbage and Shield Arms will fail.

Last I heard, ProMag was still in business. ;)

[Magsz]

Last I heard, ProMag was still in business. ;)

Yet we all have a choice of whether or not we buy their stuff which is based upon YEARS of data proving that their shit is well, shit.

These mags aren't even out yet...

[YVK]

Somehow it escaped my attention that these mags are to be made by Checkmate. Adding this bit to the announcement of initial batch with wrong finish and what have you, my short little fingers typed up a cancellation request all by themselves.

[HopetonBrown]

Steve Fisher saying something about a cease and desist letter from Sig. 44804

[victran]

Steve Fisher saying something about a cease and desist letter from Sig. 44804

Dammit Sig lol🤣

[GJM]

I just heard that, too.

Wonder what Sig’s patent says — I am assuming something like “managed to get more cartridges in a magazine than we expected to?”

[Jeff S.]

I just heard that, too.

Wonder what Sig’s patent says — I am assuming something like “managed to get more cartridges in a magazine than we expected to?”


Basically says “we have a single stack magazine that transitions to a double stack, which allows the chamber area, slide width, and the area around the trigger guard width to conform to single stack standards, but the double stack portion allows for double stack capacity.”

It’s also more complicated than that. At face value, it’s not the first single stack/double stack hybrid, but the patent also goes into greater depth.


https://patents.justia.com/patent/20190195584

https://patents.justia.com/patent/D858680

[10mmfanboy]

Well this totally sucks... might as well get that stupid hellcat if this is really happening.

[4gallonbucket]

I thought a beretta 92 mag would fit in the 48. If that’s true, there’s nothing really special about the mag body.


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[Sigfan26]

Steve Fisher saying something about a cease and desist letter from Sig. 44804

Has anyone actually confirmed a cease and desist was issued?


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[BillSWPA]

Basically says “we have a single stack magazine that transitions to a double stack, which allows the chamber area, slide width, and the area around the trigger guard width to conform to single stack standards, but the double stack portion allows for double stack capacity.”

It’s also more complicated than that. At face value, it’s not the first single stack/double stack hybrid, but the patent also goes into greater depth.


https://patents.justia.com/patent/20190195584

https://patents.justia.com/patent/D858680

The first link appears to be a published application rather than an issued patent. That means the claims might not be in the final form or in allowable condition.

The second is a design patent that protects the appearance, not the functional features.

I cannot promise anything but will try to look up more details tomorrow.


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[Olim9]

They did put up a status update page for the S15 specifically
https://shieldarms.com/s15-updates

Hopefully there isn’t an update about a C&D, that would be some bs

[Bucky]

I thought a beretta 92 mag would fit in the 48. If that’s true, there’s nothing really special about the mag body.


It fits, but it's snug, so it wouldn’t drop free. A few thousandths narrower and you’re good to go. Yeah, I don’t see what the issue is, or how Sig can block this.

[Poconnor]

Sig has big money and they can use lawyers to bankrupt smaller companies with frivolous lawsuits. I looked at the patent application and besides a lot of bullshit I didn’t see anything new. I wish sig would spend their time and money on better quality control and better products. I just saw a new sig 365 sas. Probably a good marketing move but for actual use they should take whoever designed it out behind the woodshed and knock the stupid out of them. Better yet have their management go through 120 hours of high round count shooting training at their own school.

[Poconnor]

Are they really using checkmate? I hope not

[Jeff S.]

Sig has big money and they can use lawyers to bankrupt smaller companies with frivolous lawsuits. I looked at the patent application and besides a lot of bullshit I didn’t see anything new. I wish sig would spend their time and money on better quality control and better products. I just saw a new sig 365 sas. Probably a good marketing move but for actual use they should take whoever designed it out behind the woodshed and knock the stupid out of them. Better yet have their management go through 120 hours of high round count shooting training at their own school.


What you got the be careful about, is that I’m the one who posted those two links, and I found them in a 30 second google search. There could be other patents (patent searching isn’t easy), and I didn’t try very hard. I could be mistaken, but I recall Phil Strader saying they have three patents on the magazine.

The way I see it, if there is anything novel about the P365 magazine (and Sig spent the time and money designing it), then of course they’re going to protect the patents. There’s also the obvious problem that the C&D letter is just a rumor, and may very well be untrue. And even if it is true, it doesn’t guarantee a lawsuit will happen. If they do sue and it’s completely frivolous, then I hope they have to pay both parties lawyer fees.


Thinking about it, it is interesting that Checkmate is making the S15 magazine, since they are the one contracted by Sig to manufacture the P365 magazine. Patents aside, I’d think Sig would have protections in the contract with Checkmate to prevent them from manufacturing similar magazines (and for all we know, the S15 may be nothing like the P365 magazine and all this speculation is for nothing).

[t1tan]

Are they really using checkmate? I hope not

This concerns me as well...

[10mmfanboy]

The cease and desist is false. I asked shield arms directly. They said there is no cease and desist and the magazines are coming out.

[Up1911Fan]

SA confirmed Checkmate is the vendor.

[GJM]

FIFY


The cease and desist is false, according to Shield Arms.

[t1tan]

SA confirmed Checkmate is the vendor.

Where?

[Jeff S.]

Where?


https://shieldarms.com/glock-43x-48-15-round-mag

At the bottom of the description is says “proudly made in the USA by check-mate.”

[Up1911Fan]

Where?

I asked them.

[El Cid]

https://shieldarms.com/glock-43x-48-15-round-mag

At the bottom of the description is says “proudly made in the USA by check-mate.”

Well that’s a big fat disappointment... I’ll give mine a try and hope for the best.

As for Sig, if that’s true it gives me one more reason to despise them as an organization and pray for their demise.

[echo5charlie]

Well that’s a big fat disappointment... I’ll give mine a try and hope for the best.

As for Sig, if that’s true it gives me one more reason to despise them as an organization and pray for their demise.

I do hope that these magazines make it to market and work, I really do.

As for SIG....I have disliked them for a good while. For many, many years we were a SIG direct dealer.

Many years ago we special ordered a SIG556 SBR for a customer. He was on the shorter side. SBR comes in and it does not have the collapsible side folding stock that it was supposed to have even though the label on the box indicated that it should have. A check of SIGs website indicates a side folding collapsible stock. A call to SIG reveals that the stock had been "updated" to be side folding only. We deal with the pissed customer who no longer wanted the SBR. SIG didn't want the SBR back so we were stuck. We ended up selling it about a year later. Thanks SIG.

A few years back we sold a P290 to a customer. The gun didn't work properly and needed to go back to SIG for service. When I called to arrange the service I was told that since the gun was not owned by the original owner it was not covered under warranty. This was strange since we sold the gun and had received it directly from SIG. The CS person told me that Gander Mountain had sold the gun. Long story short, SIG had sent the gun to Gander Mountain and GM had returned it to SIG. We then received it when we ordered the P290. It took a bit to clear this up but it was enough to piss me off pretty good. Thanks SIG.

During the post-Sandy Hook sales craze we had issues with SIG changing features of M400, 516, and 716 rifles. We actually had to put a disclaimner that the rifle received may not match what SIG advertised the rifle to actually come with. Thanks SIG.

After the 2016 election when the industry really started turning to shit SIG began a strict enforcement of MAP policy. I had listed an auction on Gunbroker where I was under MAP by $0.99. We actually got two phone calls and several emails about losing our SIG Dealer status due to this. I had corrected the issue when it was brought to our attention, but ever after that we were getting constant reminders about MAP. Thanks SIG.

10 years ago SIG would randomly ship biometric safes with orders. Safes you didn't order, but they sure charged you for them. Of course you had to call and explain that you not only didn't order the said safe but also didn't really want it Thanks SIG.

So, bitching aside, what was the point of me writing all this? I totally believe SIG would pull a C&D.

[ffhounddog]

I just Want to buy a 10. Why so few I know the checkmate guys makes good mags for my guns 1911 9mm and 45.

[BillSWPA]

Basically says “we have a single stack magazine that transitions to a double stack, which allows the chamber area, slide width, and the area around the trigger guard width to conform to single stack standards, but the double stack portion allows for double stack capacity.”

It’s also more complicated than that. At face value, it’s not the first single stack/double stack hybrid, but the patent also goes into greater depth.


https://patents.justia.com/patent/20190195584

https://patents.justia.com/patent/D858680

I checked the US Patent and Trademark Office file history of the published application. It has been allowed, but not with the claims in the publication. In order to gain allowance, the applicant added a limitation that the magazine has a stepped portion between the double stack portion and the upper end of the tube. The stepped portion is required to have an upper sloped portion, a lower sloped portion, and a vertical portion between the upper and lower sloped portions.

Once that patent issues, which will happen on November 19, any magazine having each and every feature recited in at least one claim would infringe the patent.

[Texaspoff]

I checked the US Patent and Trademark Office file history of the published application. It has been allowed, but not with the claims in the publication. In order to gain allowance, the applicant added a limitation that the magazine has a stepped portion between the double stack portion and the upper end of the tube. The stepped portion is required to have an upper sloped portion, a lower sloped portion, and a vertical portion between the upper and lower sloped portions.

Once that patent issues, which will happen on November 19, any magazine having each and every feature recited in at least one claim would infringe the patent.

Maybe I'm just a simpleton, but I am not seeing why the 365 magazine is tremendously different than every other staggered magazine out there. All staggered magazines step down to a single round feeding onto the chamber. I am not seeing anything on the 365 magazine, other than the length of the single stack step that may have a different measurement than other mags, but it that really enough to allow a patent on.

It seems to me that if that comes to fruition, that every manufacturer that produced a double stack magazine is going to have to pay royalties.

Sig was able to pull off the 365 magazine by maximizing the width and height of their double stack magazine, getting it in the smallest footprint they could, then they built the pistol around it. They themselves admit this. I just don't see anything revolutionary about the magazine. Good for them and it is creating others to push forward and pursue the same, see Hellcat.

It seems to me Sig is just trying to prevent the rest of the market in competing with them. Some of this stuff is getting ridiculous. I always feel like a company is trying to force consumers into purchasing their products with these kind of tactics. i get protecting themselves as a company, but a magazine patent, really?... I just haven't been really happy with Sig business practices since Cohen took over, so I guess this really shouldn't be surprising.


It so obvious they are different, right?

https://i.imgur.com/sNAvGYsl.jpg
https://i.imgur.com/SOGagFEl.jpg




TXPO

[BillSWPA]

Maybe I'm just a simpleton, but I am not seeing why the 365 magazine is tremendously different than every other staggered magazine out there. All staggered magazines step down to a single round feeding onto the chamber. I am not seeing anything on the 365 magazine, other than the length of the single stack step that may have a different measurement than other mags, but it that really enough to allow a patent on.

It seems to me that if that comes to fruition, that every manufacturer that produced a double stack magazine is going to have to pay royalties.

Sig was able to pull off the 365 magazine by maximizing the width and height of their double stack magazine, getting it in the smallest footprint they could, then they built the pistol around it. They themselves admit this. I just don't see anything revolutionary about the magazine. Good for them and it is creating others to push forward and pursue the same, see Hellcat.

It seems to me Sig is just trying to prevent the rest of the market in competing with them. Some of this stuff is getting ridiculous. I always feel like a company is trying to force consumers into purchasing their products with these kind of tactics. i get protecting themselves as a company, but a magazine patent, really?... I just haven't been really happy with Sig business practices since Cohen took over, so I guess this really shouldn't be surprising.



TXPO

In order to obtain a patent, the applicant has to draft claims to an invention which is novel (no one has done it before) and non-obvious (one skilled in the art and familiar with all prior or it would not find it obvious). Anything that existed prior to the filing date of the application is prior art, and can be used to show that the invention is either not novel or is obvious. If someone was making a magazine having this design before the patent application was filed, not only would they not owe Sig royalties, but that fact could be used to invalidate the patent.

Getting a patent is not an easy process, but it is well worth doing when something that is novel, non-obvious, and provides a competitive advantage is developed. In this case, Sig produced a magazine configuration that allows an unusually high capacity in an unusually thin pistol. Most inventions are small improvements over the prior art. The specific magazine structure may seem like a small change, but it is game changing in terms of what it achieves.

I have prepared and prosecuted patent applications for 22 years at this point and it is more difficult today than it was when I first started. Examiners are much stricter today in making sure that the requirements for patentability are met. As a result, we can be reasonably assured that any patent that has been issued within the past several years will be of generally good quality.

[BillSWPA]

I do hope that these magazines make it to market and work, I really do.

As for SIG....I have disliked them for a good while. For many, many years we were a SIG direct dealer.

Many years ago we special ordered a SIG556 SBR for a customer. He was on the shorter side. SBR comes in and it does not have the collapsible side folding stock that it was supposed to have even though the label on the box indicated that it should have. A check of SIGs website indicates a side folding collapsible stock. A call to SIG reveals that the stock had been "updated" to be side folding only. We deal with the pissed customer who no longer wanted the SBR. SIG didn't want the SBR back so we were stuck. We ended up selling it about a year later. Thanks SIG.

A few years back we sold a P290 to a customer. The gun didn't work properly and needed to go back to SIG for service. When I called to arrange the service I was told that since the gun was not owned by the original owner it was not covered under warranty. This was strange since we sold the gun and had received it directly from SIG. The CS person told me that Gander Mountain had sold the gun. Long story short, SIG had sent the gun to Gander Mountain and GM had returned it to SIG. We then received it when we ordered the P290. It took a bit to clear this up but it was enough to piss me off pretty good. Thanks SIG.

During the post-Sandy Hook sales craze we had issues with SIG changing features of M400, 516, and 716 rifles. We actually had to put a disclaimner that the rifle received may not match what SIG advertised the rifle to actually come with. Thanks SIG.

After the 2016 election when the industry really started turning to shit SIG began a strict enforcement of MAP policy. I had listed an auction on Gunbroker where I was under MAP by $0.99. We actually got two phone calls and several emails about losing our SIG Dealer status due to this. I had corrected the issue when it was brought to our attention, but ever after that we were getting constant reminders about MAP. Thanks SIG.

10 years ago SIG would randomly ship biometric safes with orders. Safes you didn't order, but they sure charged you for them. Of course you had to call and explain that you not only didn't order the said safe but also didn't really want it Thanks SIG.

So, bitching aside, what was the point of me writing all this? I totally believe SIG would pull a C&D.

Those are all horrible examples of customer service, but many good companies send cease and desist letters when their formally protected intellectual property is infringed. If they cannot stop someone else who didn’t put in the time and expense of developing it from selling it, why develop anything new?



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[Old Man Winter]

I just haven't been really happy with Sig business practices since Cohen took over, so I guess this really shouldn't be surprising.

Vote with your wallet. Sig makes nothing I want enough to overlook their quality control and general douchiness under present leadership.

[echo5charlie]

Those are all horrible examples of customer service, but many good companies send cease and desist letters when their formally protected intellectual property is infringed. If they cannot stop someone else who didn’t put in the time and expense of developing it from selling it, why develop anything new?



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Because it’s SIG. the company sucks. They didn’t exactly develop a new magazine design to accommodate a single stack firearm to handle a double stack mag, they are just douchey enough to file a patent for it. For example: Makarov high capacity magazines, developed but not patented. Shit, the “high cap” Makarovs are even backwards compatible with the single stack mags.

There is nothing revolutionary about the 365 magazine design, just super douche SIG being SIG and filing for a patent.

[BillSWPA]

Because it’s SIG. the company sucks. They didn’t exactly develop a new magazine design to accommodate a single stack firearm to handle a double stack mag, they are just douchey enough to file a patent for it. For example: Makarov high capacity magazines, developed but not patented. Shit, the “high cap” Makarovs are even backwards compatible with the single stack mags.

There is nothing revolutionary about the 365 magazine design, just super douche SIG being SIG and filing for a patent.

Read my post above describing what it takes to obtain a patent.

A patent examiner who works in the firearms art, holds an engineering degree, and has looked at this in detail disagrees with you.



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[MSparks909]

So in layman’s terms, if the C&D letter is real, then the mags aren’t coming to market? Or if they do make it to market before the 19th (doubtful) then anymore made after that would be in violation of the C&D letter? That sucks. Was really looking forward to a 15 round G48...although the fact that they’re made by Checkmate is definitely off putting.

[echo5charlie]

Read my post above describing what it takes to obtain a patent.

A patent examiner who works in the firearms art, holds an engineering degree, and has looked at this in detail disagrees with you.



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This person should realize that I stated an opinion*, not a brief that SIG actually didn't have a "real" patent?


* - 1)That SIG sucks and does sucky things and really sucks & 2) I find their patent non-revolutionary. Opinion noun def: a view, judgment, or appraisal formed in the mind about a particular matter.

[BillSWPA]

This person should realize that I stated an opinion*, not a brief that SIG actually didn't have a "real" patent?


* - 1)That SIG sucks and does sucky things and really sucks & 2) I find their patent non-revolutionary. Opinion noun def: a view, judgment, or appraisal formed in the mind about a particular matter.

Your point?

[echo5charlie]

Your point?

Well, I'm now assuming you're the aforementioned engineer. Sorry, I can't help you any further.

[BillSWPA]

Well, I'm now assuming you're the aforementioned engineer. Sorry, I can't help you any further.

Your assumption is as baseless as your opinion. I have never been an Examiner and have no role in this application. Either can be verified on the USPTO website.



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[CanineCombatives]

The systemic hatred of sig sauer tends to cloud people’s judgement, it’s already been confirmed no cease and desist was ever served, yet they persist.

[Old Man Winter]

In order to obtain a patent, the applicant has to draft claims to an invention which is novel (no one has done it before) and non-obvious (one skilled in the art and familiar with all prior or it would not find it obvious). Anything that existed prior to the filing date of the application is prior art, and can be used to show that the invention is either not novel or is obvious. If someone was making a magazine having this design before the patent application was filed, not only would they not owe Sig royalties, but that fact could be used to invalidate the patent.

Getting a patent is not an easy process, but it is well worth doing when something that is novel, non-obvious, and provides a competitive advantage is developed. In this case, Sig produced a magazine configuration that allows an unusually high capacity in an unusually thin pistol. Most inventions are small improvements over the prior art. The specific magazine structure may seem like a small change, but it is game changing in terms of what it achieves.

I have prepared and prosecuted patent applications for 22 years at this point and it is more difficult today than it was when I first started. Examiners are much stricter today in making sure that the requirements for patentability are met. As a result, we can be reasonably assured that any patent that has been issued within the past several years will be of generally good quality.


Read my post above describing what it takes to obtain a patent.

A patent examiner who works in the firearms art, holds an engineering degree, and has looked at this in detail disagrees with you.

Not long ago it seemed as if patents were granted regardless of prior art and the courts had to sort things out. Perhaps things have changed.

I would argue Sig did not create a magazine configuration that allows an unusually high capacity in an unusually thin pistol. Beretta 92 is considered a very thick pistol yet the 92 mags fit inside the P365 grip. Magazines that transition from a staggered or double feed into a single feed have been in use long before the P365 appeared as an idea in some designers thinking cap.

[echo5charlie]

Your assumption is as baseless as your opinion. I have never been an Examiner and have no role in this application. Either can be verified on the USPTO website.



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Yay for you? Perhaps we can take this to PM or a phone call if you feel the need to further any discussion on how awesome you are.

[BillSWPA]

Not long ago it seemed as if patents were granted regardless of prior art and the courts had to sort things out. Perhaps things have changed.

I would argue Sig did not create a magazine configuration that allows an unusually high capacity in an unusually thin pistol. Beretta 92 is considered a very thick pistol yet the 92 mags fit inside the P365 grip. Magazines that transition from a staggered or double feed into a single feed have been in use long before the P365 appeared as an idea in some designers thinking cap.

The examiner rejected the claims as initially filed based on prior art references showing tapered magazines with multiple configurations. The allowed claims require a very specific magazine wall configuration. It is more than a mere tapered magazine.

Is it possible to fit a Beretta magazine in far enough to potentially chamber a round? When inserted that far, are the same number of rounds within the space of the grip?

More importantly for the claims, does the Beretta magazine have the specific claimed taper configuration between the top and double stack portion: a sloped wall, above a vertical wall, above another sloped wall, above the double stack portion? That was the specific limitation that resulted in allowance.

It seems like a little difference, but that little difference is what makes a big difference.



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[Texaspoff]

Well despite whatever patent Sig obtains I have absolutely no desire to purchase a 365. I have a 43 and 43x and knowing the possible 15 round 43x mags are, will, or were being manufactured by checkmate is enough to keep me away from them

If I had a desire to carry a small pistol with more than 10 rounds on board, I’d spend my money on a hellcat at before I would accept a 365 for free just based on the principle of owning a currently produced Sig.

With their current line of business practice I will let my wallet do my talking.


TXPO

[Sigfan26]

Is there actually any evidence that a cease and desist was issued???


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[Up1911Fan]

Well despite whatever patent Sig obtains I have absolutely no desire to purchase a 365. I have a 43 and 43x and knowing the possible 15 round 43x mags are, will, or were being manufactured by checkmate is enough to keep me away from them

If I had a desire to carry a small pistol with more than 10 rounds on board, I’d spend my money on a hellcat at before I would accept a 365 for free just based on the principle of owning a currently produced Sig.

With their current line of business practice I will let my wallet do my talking.


TXPO

Thought you were diggin the 320?

[BillSWPA]

While I am not in a position to know whether a cease and desist was sent or not, or whether such a letter would have merit in this case, the mere sending of a cease and desist does not, by itself, ensure compliance. When one of my clients receives a cease and desist letter, there is at least a 50% likelihood that I am going to tell the sender to pound salt. Not all cease and desist letters have a strong basis.

[pangloss]

This thread needs more pictures.

44885

Photo from the GunMag Warehouse website (https://gunmagwarehouse.com/sig-sauer-p365-micro-compact-9mm-12-round-magazine.html).

EDIT: I have no connection with GunMag Warehouse aside from placing a couple of orders from them over the past few years.

[Sigfan26]

This thread needs more pictures.

44885

Photo from the GunMag Warehouse website (https://gunmagwarehouse.com/sig-sauer-p365-micro-compact-9mm-12-round-magazine.html).

EDIT: I have no connection with GunMag Warehouse aside from placing a couple of orders from them over the past few years.

Still reminds me of my HK P7M13 mag:
https://uploads.tapatalk-cdn.com/20191117/c928975867b80677b00cce870fe918b2.jpghttps://uploads.tapatalk-cdn.com/20191117/fb33f99bf8e5328aafc831341ef6a434.jpghttps://uploads.tapatalk-cdn.com/20191117/db208aa8907b5784100713eafa0f58c6.jpghttps://uploads.tapatalk-cdn.com/20191117/df529486ba55ea4954f783cd5821b325.jpg


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[BillSWPA]

Still reminds me of my HK P7M13 mag:
https://uploads.tapatalk-cdn.com/20191117/c928975867b80677b00cce870fe918b2.jpghttps://uploads.tapatalk-cdn.com/20191117/fb33f99bf8e5328aafc831341ef6a434.jpghttps://uploads.tapatalk-cdn.com/20191117/db208aa8907b5784100713eafa0f58c6.jpghttps://uploads.tapatalk-cdn.com/20191117/df529486ba55ea4954f783cd5821b325.jpg


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Thank you for posting. This provides a perfect illustration.

That magazine appears to have all of the claimed features except the upper sloped surface. One missing feature is enough to take it outside the scope of the claims.



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[Sigfan26]

Thank you for posting. This provides a perfect illustration.

That magazine appears to have all of the claimed features except the upper sloped surface. One missing feature is enough to take it outside the scope of the claims.



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I’d just like someone to make P7M13 mags that aren’t $200...


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[Texaspoff]

Thought you were diggin the 320?

I do like the 320 overall specifically the x carry and x pro series but it I won’t give Sig anymore of my money until their leadership and business practices change.

This is yet another reason not to support the company.

[10mmfanboy]

I'd like to see a hellcat magazine side by side to a p365 magazine to see how Springfield got around the copyrights.

I thought I saw a comment somewhere about shield arms making a 10 round magazine for a standard glock 43 that usually holds 6 rounds. Has anyone else heard of this? I would totally dig that idea!

[TC215]

A buddy just got an email that his mags have shipped.

[WobblyPossum]

Can’t wait to hear everyone’s experiences. If things are positive, I’ll likely snag a couple for my girlfriend’s G48.

[Sigfan26]

I'd like to see a hellcat magazine side by side to a p365 magazine to see how Springfield got around the copyrights.

I thought I saw a comment somewhere about shield arms making a 10 round magazine for a standard glock 43 that usually holds 6 rounds. Has anyone else heard of this? I would totally dig that idea!

I’ll see if I have time to snap some at work tomorrow


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[Up1911Fan]

Got my refund, because, Checkmate.

[CanineCombatives]

Apparently they are already shipping.

[Xhado]

Found these on AR15

https://youtu.be/QH_6GpZvJWk

https://youtu.be/56YyeHKE9rc

https://youtu.be/GZ4DddWp6u8

https://youtu.be/40U3HPjvO3g

https://youtu.be/OLtgE6WcAGM

[TC215]

A buddy just got an email that his mags have shipped.

Update— Only thing they ended up sending was the new mag catch.

[MSparks909]

First video I’ve seen on YouTube of a customer shooting these mags. Same guy who posted the videos a few posts up:


https://youtu.be/582NNNQ64JQ


https://youtu.be/ffx-cmaD7_k

The mags not dropping free in the video is 100% user error. When performing a reload, drop the magazine first while the gun is oriented vertically and then bring the gun back into your “workspace” to perform the reload. Factory Glock mags will hang up for me if I don’t drop them first before bringing the gun back in to perform a reload. I tried to post that on his YouTube comments but he doesn’t allow comments on his videos.

[psalms144.1]

I'm not sure I'd say the magazine hanging in the grip is 100% user error, especially with a metal magazine. All Glock shooters have learned the "shake to release" motion with Glock factory mags, or have learned how to snap the grip hard outboard to help the mag slide free. Having a magazine stay in the well despite a depressed release and not move without being manually ripped free is something completely different, IMHO.

[WobblyPossum]

I'm not sure I'd say the magazine hanging in the grip is 100% user error, especially with a metal magazine. All Glock shooters have learned the "shake to release" motion with Glock factory mags, or have learned how to snap the grip hard outboard to help the mag slide free. Having a magazine stay in the well despite a depressed release and not move without being manually ripped free is something completely different, IMHO.

In my experience, Glock mags literally “drop” when you hit the mag release. What I mean is that HK mags, for example, seem to actually shoot out of the frame with additional force when you hit the mag release. With Glocks, there’s no extra force so if you have the magazine well parallel to the ground instead of perpendicular, the magazine release is no longer locking the mag in, but there is no reason for the mag to exit the well. The mags need gravity to actually pull them out of the mag well and the shooter in the video was negating gravity by not having the mag well perpendicular to the ground when he hit the mag release.

[MSparks909]

In my experience, Glock mags literally “drop” when you hit the mag release. What I mean is that HK mags, for example, seem to actually shoot out of the frame with additional force when you hit the mag release. With Glocks, there’s no extra force so if you have the magazine well parallel to the ground instead of perpendicular, the magazine release is no longer locking the mag in, but there is no reason for the mag to exit the well. The mags need gravity to actually pull them out of the mag well and the shooter in the video was negating gravity by not having the mag well perpendicular to the ground when he hit the mag release.

Exactly.

[RJ]

With Glocks, there’s no extra force so if you have the magazine well parallel to the ground instead of perpendicular, the magazine release is no longer locking the mag in, but there is no reason for the mag to exit the well. The mags need gravity to actually pull them out of the mag well and the shooter in the video was negating gravity by not having the mag well perpendicular to the ground when he hit the mag release.

Dan, thats not how the mags eject in my Gen 5 19? Held upside down, the mag pops up slightly when the release is hit.

So i think yes, there is pressure on the magazine.

Ok so maybe not like candy bars out of a drive in movie machine a la HK :cool: but still, my Glock mags do ‘pop’ a bit.


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[TGS]

Dan, thats not how the mags eject in my Gen 5 19? Held upside down, the mag pops up slightly when the release is hit.


An empty mag with the slide locked back?

Mine hang up quite easily, especially compared to my HK P2000 that would shoot the magazine out with force.

Deadly force.

I've also noted that Glock 17 mags seem to eject more cleanly in my 19M than Glock 19 mags. Maybe that extra hair's worth of weight pushes it over some ambiguous threshold to eject reliably.

[RJ]

An empty mag with the slide locked back?

Mine hang up quite easily, especially compared to my HK P2000 that would shoot the magazine out with force.

Deadly force.

I've also noted that Glock 17 mags seem to eject more cleanly in my 19M than Glock 19 mags. Maybe that extra hair's worth of weight pushes it over some ambiguous threshold to eject reliably.

USPSA style, w slide closed.

If I do a reload on an open slide, I’ve messed up my stage plan.

My VP9 as well as P30SK definitely shot the mags out; don’t disagree. But Glock mags do ‘pop’, imho; perhaps not HK-like, ‘tis true.


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[TGS]

USPSA style, w slide closed.

If I do a reload on an open slide, I’ve messed up my stage plan.

My VP9 as well as P30SK definitely shot the mags out; don’t disagree. But Glock mags do ‘pop’, imho; perhaps not HK-like, ‘tis true.


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Right.

When the slide is open and lacking the mag spring pressing against the slide, they can hang up quite easily.

Every mag on every gun will "pop" if you have the slide closed.

[RJ]

Right.

When the slide is open and lacking the mag spring pressing against the slide, they can hang up quite easily.

Every mag on every gun will "pop" if you have the slide closed.

Learning has occurred.

And since I’m REALLY bored, here’s what I mean about my G19.5:

https://youtu.be/tl_er8RXc9E

I do have to hold it vertically for the mags to come out clean, for sure.


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[Grey]

So are these mags shit and I should get a refund or what?

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[El Cid]

So are these mags shit and I should get a refund or what?

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Being made by checkmate makes that more likely than not. But I’ve already paid so if I ever get them I’ll give them a shot. But I’m more tolerant than some shooters bcz my only gun for years was a Para P14. It was normal to buy a Para mag and replace the spring with a Wolff before even trying it.

[Dismas316]

Another video on the Shield S15 dropped this morning.

https://youtu.be/NzsY4iKUbrw

[JBP55]

Why take 20 minutes to do what could be done in 2 minutes. Too much blah, blah, blah.

[10mmfanboy]

Shield Arms did say they are working on a magazine for the standard Glock 43, they just aren't sure yet what the round count will be. Originally it was supposed to be a 10 round mag, sounds like that may not be the case anymore.

[Warped Mindless]

So far the reviews im seeing and hearing from people who actually have these mags are positive.

If these end up being relaible im going to be pretty excited. The glock 48 will replace my 19 as my primary edc.

[Det1397]

FWI: https://www.youtube.com/watch?v=NzsY4iKUbrw&t=927s

[Warped Mindless]

Im surprised we aren't hearing more about these yet. I seen some reviews last week but its been crickets since.

[CWM11B]

Well, I still haven't received mine, nor seen any e-mail updates for a while...

[Bucky]

FWI: https://www.youtube.com/watch?v=NzsY4iKUbrw&t=927s


https://youtu.be/NzsY4iKUbrw

[Kanye Wyoming]

FWIW, here are two more. Both positive.


https://youtu.be/_TqqZYDXa1E


https://youtu.be/8EXD12cQgGM

[HeavyDuty]

I think I saw something about a SIG cease and desist due to alleged patent violations? It may have been here...

Derp - it’s upthread.

[BillSWPA]

Based on the shape of the magazines shown in the video and the claims in Sig’s patent, I do not see a basis for sending a cease and desist letter.



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[John Murphy]

I am anxiously awaiting mine!

[23JAZ]

In order 137xx and still waiting. I did hear about one guy complaining that the metal mag chewed up he polymer mag catch after a few hundred rounds so that concerning.

[Warped Mindless]

In order 137xx and still waiting. I did hear about one guy complaining that the metal mag chewed up he polymer mag catch after a few hundred rounds so that concerning.

SA is suggesting to people they upgrade their mag catch. Small price to pay for 15 rounds though.

[23JAZ]

SA is suggesting to people they upgrade their mag catch. Small price to pay for 15 rounds though.
Yes I ordered a mag catch from them. It’s shipped the same day and arrived 2 days later. Just installed it this morning. Now I just need my mags to show up!

[4gallonbucket]

In order 137xx and still waiting. I did hear about one guy complaining that the metal mag chewed up he polymer mag catch after a few hundred rounds so that concerning.

I’m order 155xx. I placed order late on day 2 of preorder. No shipment yet. I went with 3 mags + catch package.


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[CR78]

I'm order # 133xx, and waiting too.

[23JAZ]

They don’t have to worry about being accused of rushing their product to market that’s for sure!

[Grey]

Anyone actually get theirs? I think I am way down on the list, asked for an update, crickets...

[md8232]

Update today at Shield.
https://shieldarms.com/s15-updates

[Dismas316]

Received my 15 round mag from Shield arms on Friday and put 400 rounds through my 43x. No issues at all, locked back every time it was supposed to and had zero issues in Dropping the mag from the gun. So far very pleased with it to this point.

[TheNewbie]

Received my 15 round mag from Shield arms on Friday and put 400 rounds through my 43x. No issues at all, locked back every time it was supposed to and had zero issues in Dropping the mag from the gun. So far very pleased with it to this point.

Do the mags have the appearance of being well made?

[Dismas316]

Do the mags have the appearance of being well made?

yes, very well. They look like my sig/CZ metal mags.

added some pics. Left is oem, middle is shield S15, right is 356xl 12 round mag

[CR78]

Just got my shipping notification. Guess it's time for me to think about buying a 43x or 48 to test it with...

[CarlK]

I am looking to pick up two or three of these mags if you have any and want to make a profit.

[Dismas316]

Update on the Shield Arms S15. I had indicated above that first 400 rounds where no issues. Today and the range pretty much every time the mag ran dry it would not lock back. I then tried it a number of times one handed to make sure I wasn't riding the slide or anything but it would not lock back after the last round. Once I started really testing with a few rounds it on rare occasions would lock back but for the most part it wouldn't. When I charge the gun with an empy mag, I have to really rack it hard for it to lock back and catch, most of the time it won't. Not the end of the world but disappointed, can't really say I'm surprised though.

[CanineCombatives]

Extremely disappointing, these mags if reliable would have really moved the goal posts.

[Dismas316]

Extremely disappointing, these mags if reliable would have really moved the goal posts.

Agree, having 15 rounds in the 43x size is pretty awesome. Not locking back isn’t the end of the world but not really happy about that either. I’ll be curious to see if others have similar issues or if they prove to be reliable, but the cynic in me is doubtful

[Sigfan26]

Extremely disappointing, these mags if reliable would have really moved the goal posts.


Agree, having 15 rounds in the 43x size is pretty awesome. Not locking back isn’t the end of the world but not really happy about that either. I’ll be curious to see if others have similar issues or if they prove to be reliable, but the cynic in me is doubtful

Christ, they’ve been out for a month! If Sig can get a pass on guns firing when dropped, we can wait for an update on these.


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[CWM11B]

I'm still waiting. And I ordered one the day this went live. Think I'll be asking for a refund

[Tensaw]

“Soon.” https://shieldarms.com/s15-updates

[CWM11B]

Yep. Been hearing that tune for months

[4gallonbucket]

Yep. Been hearing that tune for months

They estimate that 4 batches will fill the preorders. They say 4th batch back from heat treat. I ordered day 2. I imagine we’ll get our mags soon. I’m waiting til after SHOT Show to get my 48 or 43x. Just in case there’s something new available.


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[10mmfanboy]

I couldn't really follow along on one video I saw. I don't know if he was talking about the plus 4 extension for the oem magazines that shield arms makes or they were for his first s15 magazines he ordered, but shield arms sent him different followers for his older magazines. He also got a plus 5 extension for the new s15 magazines and they were as long as the oem magazine with plus 4 extension. Confusing as hell.

Anyone hear of a changed follower designed from shield arms?

[JBP55]

I'm still waiting. And I ordered one the day this went live. Think I'll be asking for a refund

Same here and just asked for a refund.

[JBP55]

Same here and just asked for a refund.

Received a reply saying they were reviewing my order.

[JBP55]

Shield Arms Customer Service (Shield Arms)
Jan 15, 16:34 EST
Hey James,
Your order has been cancelled and a refund issued to you.
Thank you,
Shield Arms

[Warped Mindless]

Guy at the range had one of these. At the time I talked to him he said he had well over 400rds through his one SA mag through in glock 48 with absoutley no problems. Asked him of they dropped free and he said they did. Also no issues with lock back.

Can't wait to get mine.

[Dismas316]

Spoke to shield arms on last week and they are sending me a new follower and spring. Apparently they have a “gen 2” follower that apparently works better. I’ll post once I get it and have a chance to put rounds through it. I went ahead and got the aluminum mag catch so as to rule that out as an issue. I’m hopeful, so we’ll see.

[CWM11B]

So, some folks are getting replacement parts while others haven't gotten their mags. Six months and no comms, exceptvwhat I initiated. Funny, they didnt have any issues charging my card. Looks like SA is going to make my NFE list.

[Sigfan26]

So, some folks are getting replacement parts while others haven't gotten their mags. Six months and no comms, exceptvwhat I initiated. Funny, they didnt have any issues charging my card. Looks like SA is going to make my NFE list.

Just ask for a refund... It doesn’t sound like they have any issue refunding your credit card either.


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[CanineCombatives]

So I see MAC dropped his review today and gave them a 100% perfect function over 300rds blessing.

[t1tan]

So I see MAC dropped his review today and gave them a 100% perfect function over 300rds blessing.

Dude is a joke

[HICKMAN]

buddy of mine said you guys where chatting about these mags and that I should share my findings so far here. I'm just another Glock fan on YT...

I haven't run into the lock back issue yet, talking to the guys at Shield Arms, they are resolving with stronger springs.


First review, 2 mags of 5 different types of ammo each

https://youtu.be/hRp97ET2neY


Follow up review, over 400 rounds in each mag of WWB, resolved drop free mag issues.

https://youtu.be/67PM2jInNl0

[Grey]

For those waiting for mags. I contacted Shield Arms last night asking for a refund. They sent a note saying mags are arriving this week and should be all caught up in the next week or two. They also offered to go ahead and refund if I wanted to. Decided to keep the order and see how they work when they show up.

[OkieHeat]

buddy of mine said you guys where chatting about these mags and that I should share my findings so far here. I'm just another Glock fan on YT...

I haven't run into the lock back issue yet, talking to the guys at Shield Arms, they are resolving with stronger springs.


First review, 2 mags of 5 different types of ammo each

https://youtu.be/hRp97ET2neY


Follow up review, over 400 rounds in each mag of WWB, resolved drop free mag issues.

https://youtu.be/67PM2jInNl0

Did the mag you work on drop free empty?

[HICKMAN]

Did the mag you work on drop free empty?

yes.

Someone else said they had a friend who had these mags say they could pull the mag free from the grip without pressing the mag catch. I haven't been able to budge mine a bit with the replacement mag catch.

[HICKMAN]

For those waiting for mags. I contacted Shield Arms last night asking for a refund. They sent a note saying mags are arriving this week and should be all caught up in the next week or two. They also offered to go ahead and refund if I wanted to. Decided to keep the order and see how they work when they show up.

Worth the wait IMHO

[CWM11B]

For those waiting for mags. I contacted Shield Arms last night asking for a refund. They sent a note saying mags are arriving this week and should be all caught up in the next week or two. They also offered to go ahead and refund if I wanted to. Decided to keep the order and see how they work when they show up.

Maybe I'll give them another week then, although I sent an email 2 days ago with my order number asking for an ETA. Crickets again...

[Dismas316]

Maybe I'll give them another week then, although I sent an email 2 days ago with my order number asking for an ETA. Crickets again...

You should pick up the phone and call them. I found they picked up the phone pretty quickly and had good customer service. Give it a shot, and good luck.

[Grey]

Maybe I'll give them another week then, although I sent an email 2 days ago with my order number asking for an ETA. Crickets again...

Make sure you went through their online CS ticket system. I did that initially and then kept responding to those emails and I had a response within 24 hours both times.

[medic15al]

I got my shipping notification today for Order #137xx (https://pistol-forum.com/usertag.php?do=list&action=hash&hash=137xx)

[md8232]

I got my shipping notification today for Order #137xx (https://pistol-forum.com/usertag.php?do=list&action=hash&hash=137xx)

Same here. 142XX

[CWM11B]

Well shut my mouth and I'll be damned. Got a shipping notice 15 minutes ago!

[Dismas316]

Update on my mag that wouldn't lock back. SA's sent me a follower along with a 10lb spring. I went through 350 rounds today and it ran like a champ. All said I have put close to 1000 rounds through the mag and outside of the issue of not locking back, I haven't had any other failures of any kind. I did order their aluminum mag catch when they sent me the follower/spring and installed that prior to shooting today. I'm going to order more mags at this point but I'm going to add the 10lb spring to each mag I order, they're only $2.98 so cheap insurance. At this point pretty pleased.

[Tensaw]

Mine shipped today, as well as a buddy’s.

[Speederlander]

Ignoring the weight of the extra ammo, what is the weight difference between the stock empty mag and SA's mag?

[Dismas316]

Ignoring the weight of the extra ammo, what is the weight difference between the stock empty mag and SA's mag?


10 round oem mag = 2.2oz,
15 round S15 mag = 2.1oz

[Speederlander]

10 round oem mag = 2.2oz,
15 round S15 mag = 2.1oz

Thanks. So the SA metal mag is actually lighter than the Glock mag?

[Dismas316]

Thanks. So the SA metal mag is actually lighter than the Glock mag?

yep. I was actually surprised by that myself.

[Tensaw]

Anybody got any hard intel in whether the S-15 will fit in kydex mag pouches molded for the factory 10-rounders? Seems like they should, but...

[23JAZ]

Got mine today!
47851

[CWM11B]

Mine arrived as well. Was out of town most of the day, so nothing other than inserting, checking for drop free and slide lock when racking. All that checks out. Kind of weird machining mark on the back of it. Hope to put some rounds through it Wednesday. If these puppies prove reliable, they are going to make an already attractive (to me) carry gun downright awesome. And I'm not one who has ever been a Glock fanboy. At best, I'm kind of indifferent to them. There's vetting ahead for both the gun and mag, but if they run together I may very well have a new carry piece.

[Olim9]

Anybody got any hard intel in whether the S-15 will fit in kydex mag pouches molded for the factory 10-rounders? Seems like they should, but...

Works just fine in my JMCK pouch.
47871

Anyone have a no-bullshit guide for removing the mag catches? I’m having an incredibly difficult time trying to take off my OEM one with a small flatnose screwdriver

[medic15al]

Works just fine in my JMCK pouch.
47871

Anyone have a no-bullshit guide for removing the mag catches? I’m having an incredibly difficult time trying to take off my OEM one with a small flatnose screwdriver

Small offset needle nose pliers or a medium long locking hemostat helps.

Be sure to push roll pin down to fully seat in case it creeps up.

[jandbj]

Small offset needle nose pliers or a medium long locking hemostat helps.

Be sure to push roll pin down to fully seat in case it creeps up.

Dental pick. Brownells sells em.

[23JAZ]

Anybody got any hard intel in whether the S-15 will fit in kydex mag pouches molded for the factory 10-rounders? Seems like they should, but...

JMCK for Glock 43 here. The S15 fits fine.
47872

[Tensaw]

Perfect. Thanks. Looking at the JMCK Hi Ride AIWB for an S15 with +5 baseplate. Woot.

[4gallonbucket]

Got my shipping notice. Order 155xx will be here Thurs.


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[BCGlocker]

Will G48 OEM magazine loader works on the Shield S15?

[Grey]

Got my shipping notice. Order 155xx will be here Thurs.


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Getting close to my number.

[medic15al]

Will G48 OEM magazine loader works on the Shield S15?

Yes. Mine does. Although I use a MagLULA almost exclusively.

[RAM Engineer]

Anyone have a no-bullshit guide for removing the mag catches? I’m having an incredibly difficult time trying to take off my OEM one with a small flatnose screwdriver

While it is obviously not necessary, the tool Tango Down sells is worth it to me.

[CWM11B]

While it is obviously not necessary, the tool Tango Down sells is worth it to me.

Second that. Especially since I'm apparently developing arthritis in my right thumb at the carpometacarpal joint.

[Grey]

Got my mags in, its easier to stuff 15 into the shield mag and load it into a 43x with one in the chamber, than it is to use the stock glock mag...

Obviously need to wring these mags out but cautiously optimistic.

[Tensaw]

I too was failing at getting the spring out of the mag catch on the 43X. Problem was getting behind the spring to pop it out of the slot after pushing it to the starboard side of the pistol. Screwdriver kept slipping off the spring. Dental pick was too flimsy.

Threw the screwdriver on a grinder and tried to put a 90 degree cut out on the screwdriver. Didn’t quite get that (grinding wheel too fat), but this worked on the first try. I was able to get the “hook” part created by the cut out in between the frame and spring. Hope this helps.48067

[HeavyDuty]

I too was failing at getting the spring out of the mag catch on the 43X. Problem was getting behind the spring to pop it out of the slot after pushing it to the starboard side of the pistol. Screwdriver kept slipping off the spring. Dental pick was too flimsy.

Threw the screwdriver on a grinder and tried to put a 90 degree cut out on the screwdriver. Didn’t quite get that (grinding wheel too fat), but this worked on the first try. I was able to get the “hook” part created by the cut out in between the frame and spring. Hope this helps.48067

Good use for a Wall of China Tools (Harbor Freight) screwdriver - I have quite a few I’ve modified for specific hobby tasks. Great idea!

[Tensaw]

This is also posted in the 43X Range Report thread, but it is more about the mag than the pistol, so posting here for reference as well.

Pistol is a recent production 43X (BMD serial prefix) equipped with an SCD and AmeriGlo GL-305 sights. The pistol *might* have 250 rounds through it. It was clean-ish and lubed with Slip EWL. A Shield Arms aluminum mag catch was installed last night. Today was an abbreviated vetting of the Shield Arms S15 mag.

S15 notes: After seeing some reports of the S15 failing to drop free and this being attributed at time to some residue on the exterior of the mag, I wiped mine down with some rubbing alcohol and paper towels. Sure enough, a light layer of some brown stuff came off. The mag body was a bit slicker once this was done. I pulled the innards, but there seemed to be little to no residue on the inside of the mag. The whole set up has a quality feel to it. Loading the mag by hand (no loader of any sort), those last two rounds are somewhat tough to load - but they do fit. Mag has no issues dropping free whether at slide lock or not. Bottom line: I had no problems of any sort with the mag (or pistol) - everything functioned as designed. Slide locked back on empty every time and had no failures to feed/eject. In fact, ejection continued to be consistent and vigorous (unlike some of my other Glocks).

First 15+1 through the S15 were 124 grain HSTs. I figured if the S15 would not function properly with carry ammo, there wasn’t much point to the mag at all. No issues at all. At seven, as well as 15 yards (second mag), these shot POA/POI in slow fire. This ammo is a hair snappy in the 43X, but by no means objectionable or obnoxious to shoot.

Then came some 147 grain FMJ Winchester Rangers (RA9147FMJ). 15 in the S15 and five in the factory Glock mag. No issues. Shot these a little faster so the “group” opened up some. Still not horrible POA/POI. These were pretty soft shooting and there were no feeding or extraction issues.

Lastly, two (maybe three) full (15+1) mags with some 124 grain FMJ Blazer ammo. One mag SHO, and at least one (but I think two) mags WHO. Again, zero issues with feeding/ejection.

So, not exhaustive testing by any stretch, but encouraging nonetheless

[Olim9]

I finished a 2 day low light course where I used two S15 mags mixed with some OEM 10 roundeds, I can’t give an approximate round count through each mag let alone both but it was probably about 350rds inbetween them. Whenever possible, I opted to use the Shield mags. The ammo I was using was 147gr Speer Lawman

An overwhelming majority of the shooting was done one handed if not all of it.

The good
•fed reliably, no malfunctions or stoppages that weren’t created by me*
•no signs of rust despite being rained on hard and left on wet grass constantly
•dropped free every time

The bad
•inserting the mag into a closed and empty gun required effort and a tap to ensure seating
•racking the slide on a closed and empty gun required more force than a regular slide rack
•loading the last two rounds requires a MagLula (which actually broke on me)
•slide failed to lock back every time

*user induced malfunction due to not enough force used when one handed racking the slide off holster

The magazine is definately pushing the limit of what a small 10rd magazine’s body is and it shows. I’m still 50/50 on whether or not I’d use it for carry. Part of me says yes to 15rds because I do not like to carry a reload at least for now but at the same time, OEM Glock mags work extremely well.

[Bucky]

I finished a 2 day low light course where I used two S15 mags mixed with some OEM 10 roundeds, I can’t give an approximate round count through each mag let alone both but it was probably about 350rds inbetween them. Whenever possible, I opted to use the Shield mags. The ammo I was using was 147gr Speer Lawman

An overwhelming majority of the shooting was done one handed if not all of it.

The good
•fed reliably, no malfunctions or stoppages that weren’t created by me*
•no signs of rust despite being rained on hard and left on wet grass constantly
•dropped free every time

The bad
•inserting the mag into a closed and empty gun required effort and a tap to ensure seating
•racking the slide on a closed and empty gun required more force than a regular slide rack
•loading the last two rounds requires a MagLula (which actually broke on me)
•slide failed to lock back every time

*user induced malfunction due to not enough force used when one handed racking the slide off holster

The magazine is definately pushing the limit of what a small 10rd magazine’s body is and it shows. I’m still 50/50 on whether or not I’d use it for carry. Part of me says yes to 15rds because I do not like to carry a reload at least for now but at the same time, OEM Glock mags work extremely well.

Which gun did you use? Was it a factory silver or black slide?

[BigT]

Which gun did you use? Was it a factory silver or black slide?

Its curious that , that has been asked in a couple of places considering US black and silver guns have the same frames.

[Warped Mindless]

As of this morning they are back in stock.

[Olim9]

Which gun did you use? Was it a factory silver or black slide?

Silver

[Bucky]

Its curious that , that has been asked in a couple of places considering US black and silver guns have the same frames.

From the small sampling, it appears the silver slides are more likely to experience lock back issues.

[Tensaw]

From the small sampling, it appears the silver slides are more likely to experience lock back issues.

This, with some consistency if the youtubez are to be believed. That and the failure to drop free. I think we think that Glock made some running changes/tweaks (to the frame) somewhere in the time frame that the black slides started coming out. I think.

[Danjojo]

..............

The bad
•inserting the mag into a closed and empty gun required effort and a tap to ensure seating
•racking the slide on a closed and empty gun required more force than a regular slide rack
•loading the last two rounds requires a MagLula (which actually broke on me)
•slide failed to lock back every time

*user induced malfunction due to not enough force used when one handed racking the slide off holster

The magazine is definately pushing the limit of what a small 10rd magazine’s body is and it shows. I’m still 50/50 on whether or not I’d use it for carry. Part of me says yes to 15rds because I do not like to carry a reload at least for now but at the same time, OEM Glock mags work extremely well.

Mossberg MC2c is about the same size and notice they are doing 13rd flush and 15rd extended. I'd just keep it down-loaded same as I do regular double stack Glock mags...down by two for a while, then down by one.

Edit - also Sig 365 series is 5.5" tall with 15rd mag so doing one at 5" really is pushing boundaries without having a very wide mag.

[YVK]

From the small sampling, it appears the silver slides are more likely to experience lock back issues.

I have just had my first trial session with an S15 mag. I loaded it at home with 15 rounds the day before. Not sure why I did that. There was one failure to feed mid-mag, somewhere between a 3 point jam and FTRB, with these very first 15 rounds. Broke the gun apart and lubed it. Not sure why I did that too, but I shot 100 more rounds, loading mag to a capacity, without any stoppages, including lock back issues. Mine is a silver slide 48.

One of gun store dudes had one in his carry black G48, loaded with a carry ammo. He said he has had premature slide lock issues, and failure to drop mags free.

For the time being, and maybe forever, I am carrying OEM mags.

[Mike C]

Can any of you seat your magazine to the point where the base of the top round will sit below the slide and under the breach face instead of in front of it? I can do so and managed to do so during a slide lock reload and it caused a malfunction. I can repeatedly induce this malfunction and am wondering if anyone else can or has encountered this. It seems that there is a lot of forward and rearward movement of the magazine, more so than with a factory mag. I have noticed that the mag catch cutout on the magazine is a fair bit larger than on a factory magazine. I am presently using their mag catch but can also induce the same issue with a factory mag catch. If anyone is willing to try this at the range or with dummy rounds and report back I would greatly appreciate it. Curious if my issue is an anomaly or not.

[Leroy Suggs]

YVK ]For the time being, and maybe forever, I am carrying OEM mags.

Wise man.

[YVK]

Mike C: can you post a photo of what you're describing?

[Mike C]

YVK

49544 What happens with 147gr HST when inserting the magazine. This is not as bad as when I first experienced it at the range.
49545 Angle 1 dummy round.
49546 Angle 2 dummy round.
49547 Ange 1 attempt to chamber FTF.
49548 Angle 2 attempt to chamber FTF.
49549 Angle 1 1st range trip. First attempt to chamber round from magazine. G43X, S15 Mag, SA M. catch, ammunition Speer Lawman 147gr TMJ.
49550 Angle 2 1st range trip. First attempt to chamber round from magazine. G43X, S15 Mag, SA M. catch, ammunition Speer Lawman 147gr TMJ.

I will say that so long as I take care in inserting the mag and feel for the mouth of the magazine moving forward and the top round sliding past the base of the breach face all is fine. It doesn't always happen but happened often enough during live fire when reloading from slide lock that it is a concern for me. This issue is reoccurring, I can reproduce it with Winchester Nato, Speer Lawman 147gr TMJ, Speer Gold Dot 124 +P, Blazer Brass 147gr copper plated, reloaded 124gr JHP, and dummy rounds. There is zero issue when, "topping off" and seating the mag with the slide closed on a chambered round. Mags run perfectly once properly seated and a round is in the chamber. The an addition note is that the issue seems to occur with both the standard rate spring that come with the magazine and the extra power springs that I purchased with the mags. I believe the are +10% IIRC. I have only run 100 rounds through each magazine for a total of 200.


I want to say that I am in no way condemning the product this is just an observation of something I am experiencing, (I haven't reached out to SA to talked to them and don't intend to at this point). I am wondering if this is a tolerance issue that is apparent with other owners of if it is just my sample of two. I hope to have this sorted as I am heavily invested in multiples of the G43X's and G48's and would really like to get these working.

[Olim9]

Just a quick update on my evaluation of the S15 mags. I am now comfortable with carrying mine after about ~2800 of live fire with no feeding malfunctions across various ammo types between two mags. I've gone through about 1,500rds of Lawman 147gr and 1,000 S&B 115gr, a couple boxes of 147gr HST, Speer 115gr, Blazer Brass 147gr and now I'm going through half a case of Speer 124gr. I recently took a pistol course that was ~600rds livefire with most of those being using my S15's as much as possible over my OEMs.

Some findings I've had include
•15th round is easier to load, can do it entirely standing no problems
•15th round does not show in the "15" witness hole, it's slightly above it in the mag body
•had someone at the range who also had an early silver slide Glock 48 and two S15's that would consistently lock back, only one of his mags consistently locked back on my gun (forgot to let him try my mags in his gun)

I don't know if the easing of the springs is a red flag for reliability but I've had good luck with the S15's so far and might get some more. If you can't afford the time/energy into testing these or just carry a reload or two and can reload a gun fairly quickly, I wouldn't bother with these (they're double the price of OEM mags as it is). Despite carrying an S15 as my only mag, I still believe the OEM Glock mags are objectively superior because of it's next to near no-bullshit reliability factor.

[YVK]

My second session resulted in 3 feeding malfunctions within a box of 115 grain Lawman. Next box, shot through an OEM mag, was problem free. I am close to be done with this experiment.

[10mmfanboy]

Mike C That kind of looks like how my standard g43 looks when I put one round in a OEM 6 round mag. The brass case hits the bottom of the ejector so much that it cocks the bullet up and left ( not even in line with the feed ramp). I tried the same thing with my g42 and it still rubs the bottom of the ejector but not nearly as bad as the g43. I haven't looked to see if my g48 does that though.

I've seen people even file a little bit of metal off the ejector where it makes contact with the brass case. I don't think I'd do it, but seemed to cure their feeding problem. I think they were using extended base plates in their g43. All I know is, I don't see how my g43 even feeds the last round that's how misaligned the bullet is on the last round in the magazine.

[Warped Mindless]

My second session resulted in 3 feeding malfunctions within a box of 115 grain Lawman. Next box, shot through an OEM mag, was problem free. I am close to be done with this experiment.

Have you tried the SA +10% power spring? Some people have reported that the spring has fixed their issues.

[CWM11B]

I hff ave one of these, but as of yet I haven't gotten around to a range session. Based on what I'm reading here and hearing around the club and gun shop, I'm leaning towards following my own advice on Glocks and sticking with damn near stock everything with them. Mine may get sold without ever having a round loaded in it.

[beckdw]

I'd be very interested in seeing a 10rder for the G43, getting a G26 capacity in a slim package.

[Mike C]

Mike C That kind of looks like how my standard g43 looks when I put one round in a OEM 6 round mag. The brass case hits the bottom of the ejector so much that it cocks the bullet up and left ( not even in line with the feed ramp). I tried the same thing with my g42 and it still rubs the bottom of the ejector but not nearly as bad as the g43. I haven't looked to see if my g48 does that though.

I've seen people even file a little bit of metal off the ejector where it makes contact with the brass case. I don't think I'd do it, but seemed to cure their feeding problem. I think they were using extended base plates in their g43. All I know is, I don't see how my g43 even feeds the last round that's how misaligned the bullet is on the last round in the magazine.

The round sitting cockeyed initially looked like it was just the contact with the ejector but when I looked closer at it, it seemed the issue is mostly to do with the based on the round sitting under the breach face because as soon as I work the round forward by rocking the mag from front to rear everything straightens out. I am wondering if this is just a frame to mag fit or if it is something else or a deeper issue with design and tolerances. I started to take measurements of mag widths etc. and then decided if I have to screw with this crap they'll either go back or get sold with full discloser at a discount. I really like the idea of these but will just stick to OEM which seems the best policy with everything these days. For those that might be interested though I do have a single +4 base plate that is working rather well.

Anyone else having similar issues to me?

[Bucky]

Finally got to take my 48 to the range with my new S15 magazines. Gun is a more recent black slide model, and the factory option HD sights. Gun has Apex trigger and connector kit, and Shield Arms metal mag catch.

I have two S15 magazines. I put the extra power mag spring in one magazine and left the other as is. I did 300 rounds total, equal amounts per magazine. Ammo was my USPSA reloads using TG and Montana Gold 147 FMJ with a flat point.

Most of the shooting was done freestyle, with several WHO runs at the end. All testing began at max capacity, IE 15+1.

There were no failures to feed, eject, or lock back. Both magazines performed well for function firing.

The magazine with the extra power spring would not fall free when empty at slide lock. The other magazine had no issues falling free when empty. Neither mag will fall free when full, but both fell free down one round (14 in the magazine). The issue with the one magazine may not be spring related. During my next vetting session, I plan on swapping the magazine springs to isolate that one issue.

So far I’m optimistic about these magazines and they’re potential use for carry. I’m still planning on more practice ammo testing, followed by running some premium defense ammo through it. I was even planning the 2K challenge. My concerns at the moment is it seems a bit of a buying frenzy is going on, at least locally, so not sure how that will effect pricing and availability.

TBC...

[Magsz]

250 rounds down range between two S15 mags.

G48 with their metal mag catch. Its an early production silver slide model.

My mags locked open intermittently. Not a deal breaker to me but i do wish they were more reliable in this regard.

Zero failures to feed.

[Shipwreck]

For those that might be interested though I do have a single +4 base plate that is working rather well.



On the +1 or greater mag extensions - do they come with a new spring or you use the factory one?

[Mike C]

On the +1 or greater mag extensions - do they come with a new spring or you use the factory one?

The +4 extension for the factory mag came with their spring. I'm still not having a single issue with it and like it quite a bit, I now have about 400 rounds through it. I love how the locking screw works to keep the base plate on and the height doesn't interfere with having a frame plug installed.

[Shipwreck]

The +4 extension for the factory mag came with their spring. I'm still not having a single issue with it and like it quite a bit, I now have about 400 rounds through it. I love how the locking screw works to keep the base plate on and the height doesn't interfere with having a frame plug installed.

I have decided to stick with my factory G48 mags. But, I have considered a +1 or +2. I would assume that any extension would need to come with a better spring, or there would be a potential problem

[Not HighSpeed]

I have a 2nd one on its way from the bunch they were in stock last week and I have one already.

I have the stainless slide with the Ameriglo sites. Only mods are the extended slide release(Glock), and a HYVE extended metal magazine release.

I ran about 400 rounds through it 250 defender 115gr, 150 rounds of Winchester white box, 115gr.

I had a few issues with loading on a closed slide, maybe 2-3 times but my RSA seems particularly stiff. I’ve had issues clearing a chambered round when cleaning or clearing for dry fire practice.

Drops free just fine whether loaded or empty, slide locked back or in full battery.

It did inconsistently locked back after the last round, as has been noted by others, but holds open just fine when pulling back the slide by hand on an empty mag. Also of note, my grip may also have been preventing the slide lock from engaging. I plan to swap back to the OEM slide stop to see if this improves any on my next range test. I should also have my second magazine by then.

[Olim9]

I'd be very interested in seeing a 10rder for the G43, getting a G26 capacity in a slim package.

There’s also this. An 80% Glock 43 lower that uses Sig P365 mags that is “soon” to come out
https://www.instagram.com/p/B7pRRJaBQ9c/?igshid=194shx5cm98tz

[El Cid]

Only mods are the extended slide release(Glock), ...
Wait. That’s a thing? When did they start selling it?

[Not HighSpeed]

Wait. That’s a thing? When did they start selling it?

My mistake, it was the Double Diamond extended slide stop https://www.glockstore.com/Double-Diamond-Extended-Slide-Stop-for-G43.

I thought at first it was OEM because it's on the "glockstore" website *facepalm*. I'll edit my post to reflect it.