Glock 17 Magazines As Reloads For A Glock 19 Worth The Money?

[Cypher]

My question is simple I'm considering buying some Glock 17 magazines to carry as reloads for my Glock 19 (or my Glock 26 I suppose) but given my circumstances I'm not sure I wouldn't just be pissing money away.

1. I don't own a 17 and don't ever intend to buy one.

2. I own the 19 and 26 and predominantly carry the 26. As a general rule I only carry the 19 once or twice a week. So most of the time the 17 magazines wouldn't even be a consideration.

3. I usually carry the 26 with a 12 round OEM magazine and a 19 magazine as a reload. BUT because I already have a bunch of 19 magazines it's not like I'm spending extra money to do that.

4. I realize it's the stakes not the odds but I can't fathom a situation in which it would all come down to two rounds and if it did I carry 2 reloads with the 19 anyway. And if it did the odds are I'd be carrying the 26 anyway.

After writing all this out I'm probably going to buy a couple because there's no such thing as too many magazines but I'm not going to go out and get a case of them.

I welcome any and all input

[Clusterfrack]

I prefer spare mags that fit the gun, unless there’s a big advantage in capacity. I’d stick with a G19 mag.

[Cypher]

I prefer spare mags that fit the gun, unless there’s a big advantage in capacity. I’d stick with a G19 mag.

Since you put it that way would you carry a 19 Magazine with a Glock 26?

[Clusterfrack]

I actually carry a G17 mag as a spare for a 26. But I have a G17.

I carry a G19 mag as a spare for a 19, and a P07 spare for a P07.

[einherjarvalk]

I just recently started buying G17 mags after I realized how many 19 mags I've already got (not enough, but a decent amount). The way I look at it, having a decent stockpile of G17 mags means I'm better set for if/when I ever buy a G17/G45/G34, and in the meantime, two extra rounds for the reload is always nice.

[Duke]

$40 for a couple mags and $20 for enough ammo to make sure it works


I’m not sure how we got to a collective place where a lot of folk would rather ask for the knowledge of strangers than to try something for themselves.


Not intended to be rude I’m just saying.

[EVP]

A lot of people run 17 mags in 19s because they don’t get pinched on reloads if their hands are on the bigger side.

I always found I grip and could reload full-size mags more consistent then the 15rd g19 mags.

[GLB]

I have and carry both the 19 and 17. My spare is always a 17 mag so it will work no matter which gun I strap on that day. If I were you I would probably just stick with the 19 mags and carry that with your 26 as well.

[TGS]

A lot of people run 17 mags in 19s because they don’t get pinched on reloads if their hands are on the bigger side.

I always found I grip and could reload full-size mags more consistent then the 15rd g19 mags.

My thoughts and practices exactly.

I say it's worth it, Cypher. I still use a 15 round mag in the gun for concealment's sake, but I can't find a reason to not carry "extended" mags for reloads, in addition to being easier/less fumble prone (especially so from a Blue Force Gear pouch). A good bit of us at my job do the same, whether it's a baseplate extension, PMAG 21, or Glock 17 mag. I've tried all three.

[Cypher]

$40 for a couple mags and $20 for enough ammo to make sure it works


I’m not sure how we got to a collective place where a lot of folk would rather ask for the knowledge of strangers than to try something for themselves.


Not intended to be rude I’m just saying.

Thanks for your input man

[Cypher]

I'm not sure if this changes anything but the 19 fits my hand perfectly. I don't have any problem operating it now and I don't have any problem reloading it now with the standard magazines.

[Duke]

Thanks for your input man

As I read my own statement back it did seem rude. Sorry about that

If it helps I’m using 20 round mec gar mags as my reloads for all my 92’s.

Bunch of folks do it. No issues other than it’s even longer than a 92 has to be

[TGS]

I'm not sure if this changes anything but the 19 fits my hand perfectly. I don't have any problem operating it now and I don't have any problem reloading it now with the standard magazines.

My hands wear medium sized gloves and fit the G19 as if it were made for me. I still find it easier to reload with 17s, regardless of the fact I don't have a problem reloading with 15 round mags.

YMMV.

[CleverNickname]

The correct answer is to carry one of the new 24-round 9mm magazines for a reload. They're about the same length as a G19 slide, so it's no more difficult to carry IWB than the gun.

[gringop]

I have 26s,19s, and 17s. I tried carrying 17 reload mags when carrying my 19 and found that they were significantly more uncomfortable on my fat roll, especially in my newer truck with seats that wrap around. As a matter of fact, the only time I wear the 26 is when going on a long trip in the truck, just for the comfort.

I always carry spare 19 mags for the 26, the little mags are extremely hard to get out of the mag pouch quickly and shooting a 26 with 19 mags in it is almost as easy as shooting a 19.

I got blood blisters in both hands on Sunday reloading the 19, :(

Gringop

[Caballoflaco]

Glock 17 length mags fit in all glocks, as you know. Even if you don’t have a full size glock why not have some mags that are compatible with the other most common gun in the country that also work in your pistol?

Also, I find the 17 size mags to be the perfect size for pocket carry, the extra length makes them a lot easier to fish out of pockets, and they’re easier to reload for me too (from pouches or pockets).

[deputyG23]

When I carry my off duty G27, I carry a G23 mag for a reload. When I have qualified with it using G22 mags, it would occasionally fail to go completely into battery. Never had that occur with G23 mags.
When I carry my G19 off duty, a G17 mag is the reload. This helps ensure that I don't leave the house with a 9mm gun and a .40 spare mag or vice versa.

[Old Man Winter]

For Glock's I've been buying 24-round mags exclusively. You can conceal the 24-round pretty easy and they're less expensive / more reliable than running extensions.

[PistolB]

I carried 17 mags in my G19 and had a 15 as a reload.
I usually do that on all my carry guns unless I need a bit more concealment then I carry 15.


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[Cypher]

The correct answer is to carry one of the new 24-round 9mm magazines for a reload. They're about the same length as a G19 slide, so it's no more difficult to carry IWB than the gun.


For Glock's I've been buying 24-round mags exclusively. You can conceal the 24-round pretty easy and they're less expensive / more reliable than running extensions.


I'm in Colorado. Those magazines would be illegal.

I can buy a 17 magazine as a "repair kit" and still be legal.

[Duelist]

I usually carry a flush-based ten in my G26, only occasionally using a 12 for anything at all, and once in a while, I’ll use a 17 for the spare, but usually a 15. Been doing that for about 2 years now, and the G26 is my most carried gun for that time.

I just got a 19x about a month ago, and I’ve been experimenting with carrying it this week. Been using two 17 round magazines with it, and not using the +2 19 rounders.

The 19x is my first Glock larger than the 26.

[pooty]

The 17 rounders are easier to use, and easiest to barter/sell. They work in every Glock, every 80% frame, and most PCCs.
I got mine from Natchez five for $105 shipped, held onto them for a year in case of a hi-cap mag ban, then sold them for the same price in under an hour.
The factory mags hold their value really well!

[Darth_Uno]

Sometimes I carry a 17 mag as backup for my 19, but I also own 17’s.

If it really bugs you to buy 17 mags when you don’t own one, just buy more 19 mags and put +2 baseplates on. That’s also the most expensive route to getting an extra two rounds, but it “costs what it costs” and you end up with exactly what you paid for - 19 mags that hold 17 rounds. And it’s a cleaner look when it’s in the gun, if you care about such things.

[WobblyPossum]

I generally carry G17 mag as a reload for a G19. The over insertion stop built into the mags prevents any issues with ejector damage and I haven’t found the G17 mags to be any more difficult to conceal. My hands are sized almost perfectly for a G19 and I almost never pinch my had on a reload with a G19 mag. I have never pinched my hand reloading with a G17 mag. I also normally carry a G19 or G17 mag as a reload when carrying a G26. I don’t own a G17.

[ViniVidivici]

I would say go with the G17 mags. I carry s G19 alot, and only carry G17 mags w/+2s and/or Magpul 21 rnders for spares.

Sometimes with one of those in the gun, but usually with the 15 rnder.

[Cypher]

If it really bugs you to buy 17 mags when you don’t own one, just buy more 19 mags and put +2 baseplates on. That’s also the most expensive route to getting an extra two rounds, but it “costs what it costs” and you end up with exactly what you paid for - 19 mags that hold 17 rounds. And it’s a cleaner look when it’s in the gun, if you care about such things.

It really bugs me to spend money that I don't have to spend.

Having said that, I think that your idea is the best. Because I already have several 19 magazines and 19 magazines are something that I buy when I get a chance anyway.

I can get a factory plus 2 extension off of eBay for $11. So I think I'm just going to get a couple of those and roll.

I couldn't care less how the magazine makes my gun look

[Caballoflaco]

I know a lot of people recommend the changing to the 11 coil spring for a glock 17 mag with +2 extension vs the standard 10coil spring.

I don’t know if a different spring is required for running a +2 on a g19 mag or not, but since g17 mags come from the factory with 10 coil springs and that’s what you’re making it’s what I would use in a g19+2 mag too. Standard glock 19 mags come with a 9 coil spring.

[ST911]

I know a lot of people recommend the changing to the 11 coil spring for a glock 17 mag with +2 extension vs the standard 10coil spring.

I don’t know if a different spring is required for running a +2 on a g19 mag or not, but since g17 mags come from the factory with 10 coil springs and that’s what you’re making it’s what I would use in a g19+2 mag too. Standard glock 19 mags come with a 9 coil spring.

17- 10 coil
19- 9 coil
When you add an OEM extension to those magazines, add a coil.

[ViniVidivici]

The +2s w/insert are cheapest from the Glock store, off their website.

[WDR]

I normally carry a 17 mag as a reload for my 19... not so much for the extra couple rounds, but for the fact that it is slightly easier to manipulate the 17 round vs the 15 round magazine. If concealment is a big concern, I sometimes carry the 19 magazines as reloads. I've had zero issues with 17 mags in my Glock 19s over the years.

As Duke said, they are cheap... why not?

[GearFondler]

I have also switched to the 24rd Glock mag for my G19 reload... I was carrying a pair of 17's.

Regarding the 24rd mag: When fully loaded (24rds) it will rattle like a bitch, totally unacceptable for CCW. Downloading to 23 locked all the rounds tight but that bugged my OCD, then I discovered I could easily stuff in an extra round for 25 total and it tightened up again.

[Cypher]

As Duke said, they are cheap... why not?

Because I'm cheaper than they are

[TCB]

I’m fairly new to Glocks and have been carrying a G19 off duty for a few months now, I tried a 19, a 17 & a 19 w +2 and found the 19 w +2 to be the most comfortable and print less than the 17 mag (JM IWB Tricon style pouch). I did have to put a longer spring in it as it was not locking back on empty (although it functioned fine). Glock magazines also seem to be easier to load with an UPLULA with the +2 extension on them as well, it seems to put the magazine at a better angle on the tailgate of my pickup when I’m loading mags.

[ViniVidivici]

I have also switched to the 24rd Glock mag for my G19 reload... I was carrying a pair of 17's.

Regarding the 24rd mag: When fully loaded (24rds) it will rattle like a bitch, totally unacceptable for CCW. Downloading to 23 locked all the rounds tight but that bugged my OCD, then I discovered I could easily stuff in an extra round for 25 total and it tightened up again.

I believe it's bad juju to overload a mag like that.

I have some 17 rnders that will take 18, if I push hard, but doing this can damage the spring, overstress the feedlips, etc.

If I were you, I'd just download like you were.

I highly recommend the Magpul 21 rnders, btw.

[DocGKR]

Generally use G17 mags as re-loads to my G19's.

[dontshakepandas]

I believe it's bad juju to overload a mag like that.

I have some 17 rnders that will take 18, if I push hard, but doing this can damage the spring, overstress the feedlips, etc.

If I were you, I'd just download like you were.

I highly recommend the Magpul 21 rnders, btw.I have three 24 rounders that are the same way. 24 rounds rattle like crazy. 25th round goes in easily (no hard pushing) and easily seats on a closed slide.

I'm not too concerned with getting that extra round, but without it the rattling makes the mags unusable for carry.

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[Erick Gelhaus]

During the 4+ years I carried a G19 off-duty, my spare was always some extended capacity G17 magazine. I did not find a negative with doing that.

[Gadfly]

I Carry a 17 round spare regardless of if I have a 26/19/17.

If you emptied the gun, why not have a full size mag for the reload? What is the downside to having those extra two rounds? They are universal reloads.

All the spares stashed in my vest, car, battle belt, are all 17s...

Just my .02


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[Cypher]

I Carry a 17 round spare regardless of if I have a 26/19/17.

If you emptied the gun, why not have a full size mag for the reload? What is the downside to having those extra two rounds? They are universal reloads.

All the spares stashed in my vest, car, battle belt, are all 17s...

Just my .02

Valid point. I'm not sure it would be a good idea for me at work because concealmeant is my limiting factor but it's definitely valid outside of work.

[ViniVidivici]

They're not that much harder to conceal. I keep a Magpul 21 rnder in the left front pocket.

[UNM1136]

I Carry a 17 round spare regardless of if I have a 26/19/17.

If you emptied the gun, why not have a full size mag for the reload? What is the downside to having those extra two rounds? They are universal reloads.

All the spares stashed in my vest, car, battle belt, are all 17s...

Just my .02


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If you have already blown your load, and need to reload, why not reload with LOTS? You need to make sure all is safe in your grid square before holstering up.

pat

[Gio]

I only carry spare 17 mags for my 19 and 26. They are much easier to grab out of a pouch and get a solid grip on without fumbling the reload.

[RoyGBiv]

$40 for a couple mags and $20 for enough ammo to make sure it works


I’m not sure how we got to a collective place where a lot of folk would rather ask for the knowledge of strangers than to try something for themselves.


Not intended to be rude I’m just saying.
Because if there's an obvious flaw that I've missed, I'd rather spend that 60 bucks on something else?

[CraigS]

Wow, 5 pages of this discussion? It's not like the 17 mags cost $10 more than the 19 mags. just try one and see how you like it.

[Duke]

Wow, 5 pages of this discussion? It's not like the 17 mags cost $10 more than the 19 mags. just try one and see how you like it.

We can get it locked in flames or get to 50 pages if some mentions grip angle or not liking dogs......

[sharps54]

Regarding adding extensions to 19 mags as opposed to buying stock 17s is there any concern for the durability (from being banged around, dropped on the ground during reloads, etc) of the 19 mag + the plus 2 extension vs the stock 17 mag?

[ViniVidivici]

Regarding adding extensions to 19 mags as opposed to buying stock 17s is there any concern for the durability (from being banged around, dropped on the ground during reloads, etc) of the 19 mag + the plus 2 extension vs the stock 17 mag?

I personally have not had problems with G17, G23, or G22 mags w/ factory +2s on them in this regard.

Been running some of these for years, they've been banged around, dropped in rocks and concrete, been put through hard use in general, like other mags I have.

Never a problem, so I would not hesitate to put some on G19 mags and expect the same.

[RoyGBiv]

We can get it locked in flames or get to 50 pages if some mentions grip angle or not liking dogs......

Like an oil thread in a motorcycle forum. :cool:

[Duke]

Like an oil thread in a motorcycle forum. :cool:

Motul, Motorex and Repsol


I do what Ducati ktm and Honda tel me. But I’m also a relentless Rolex apologist so maybe I’m just a shill

[RoyGBiv]

Motul, Motorex and Repsol


I do what Ducati ktm and Honda tel me. But I’m also a relentless Rolex apologist so maybe I’m just a shill
Rotella T6 in the 1.2L Kawasaki.
Mobile 1 in the Bimmer

[psalms144.1]

Just because we seem to be bumping this thread just to bump it - I use G17 mags (some with +2) for all my reloads for my G19 primary and my G26 backup/off duty carry. A couple years back, the local cop shop was out of G19 mags when I went to buy my annual three mags, but they had G17 mags. After I bought three of those, I realized they weren't bigger enough to be a concealment issue, and they still fit in the pocket of my shorts when I carry my G26, so why not have the extra couple of rounds?

At this point, I've probably got 9 G17 mags, 12-15 G19 mags, and three G26 mags (that came with the pistol).

Oh, and since we're drifting - all you sissy crotch rocket dudes have to find a V-Max and get over yourselves...

[Cypher]

I've made up my mind to pick up a couple of factory +2 extensions and see how that works before I do anything else.
You guys can continue this discussion as you see fit

[Mojonixon]

The correct answer is to carry one of the new 24-round 9mm magazines for a reload. They're about the same length as a G19 slide, so it's no more difficult to carry IWB than the gun.

The even better answer, for me, is the 24 round mags with +3 extensions. I carry 2, because I can. No fat roll to interfere with them.

[ViniVidivici]

Nice.

Today, I am carrying the G19 w/ 19 rnd mag in, Magpul 21 rnder on the side. Gotta love havin' that easy 40 rnds on tap.

Easily concealed.

[GearFondler]

The even better answer, for me, is the 24 round mags with +3 extensions. I carry 2, because I can. No fat roll to interfere with them.

Just came here to post the same thing...

I love the 24's but hate the rattle, so as I mentioned earlier in this thread the 24's are easily loaded to 25 rounds thus stopping the rattle. I never had a function issue with 25 but I did notice the rear base of the mag where it is neither supported by the metal liner nor the mag base was starting to bulge outward... maybe not an issue but I didn't like the look of it. The solution was the Glock +2 extension which easily allows for +3 in the 24 stick, both keeping the rounds an odd number to stop the rattle and completely eliminating the bulging. And since the 24 stick uses the same spring as the Happy Sticks, no worries about low spring tension... I call these my Jolly Sticks.

[Cypher]

FWIW I never did get the extensions but I have taken to only carrying a 19 magazine as a reload for my 26.

[MDFA]

My thoughts and practices exactly.

I say it's worth it, Cypher. I still use a 15 round mag in the gun for concealment's sake, but I can't find a reason to not carry "extended" mags for reloads, in addition to being easier/less fumble prone (especially so from a Blue Force Gear pouch). A good bit of us at my job do the same, whether it's a baseplate extension, PMAG 21, or Glock 17 mag. I've tried all three.

This

While the statistics say you won't need a reload or that many rounds, once you're in a shooting the statistics just went out the window. I've never heard of anyone wishing for less ammo or a smaller caliber or less cover in a deadly force situation..... My two cents; carry the ammo...

[DMF13]

I use a Taran Tactical +5 extension on my reload, and a standard 15rd mag in the gun when carrying concealed. Taking me from 31 total rounds to 36. Easy to conceal, and a 16% increase in available ammo.

While most of my work is "plainclothes," when in full tac gear I have the pistol loaded with TT+5 extended mags, and two reloads with the TT+5 extended mags. Taking me from 46 total rounds to 61 total. That's a 32% increase in available ammo.

[Wake27]

Not directed at anyone in particular, but I don’t understand the appeal of extensions anymore. They all seem to have issues (at least last I checked) and the best ones (TTI IIRC) are at least the price of one actual mag, if not two. Magpul has 17, 21, and 27 round magazines now and Glock has 24 rounders, plus the 19X mags that give you a factory option for 19 rounds. Why would anyone spend the money on an extension at this point?


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[Cypher]

Not directed at anyone in particular, but I don’t understand the appeal of extensions anymore. They all seem to have issues (at least last I checked) and the best ones (TTI IIRC) are at least the price of one actual mag, if not two. Magpul has 17, 21, and 27 round magazines now and Glock has 24 rounders, plus the 19X mags that give you a factory option for 19 rounds. Why would anyone spend the money on an extension at this point?


I use a two round factory extension on my a Glock 26 because it extends the grip just enough for me to get a full hand grip on the gun. As I mentioned above I carry a 19 magazine as a reload.

[ViniVidivici]

Issues? Again, no issues here, for years, with multiple factory +2s in multiple mags.

They're around 8-10 bucks each at the factory Glock store, with the inserts, I think.

I also now love the Magpul 21 rounders.

[Cypher]

Issues? Again, no issues here, for years, with multiple factory +2s in multiple mags.

They're around 8-10 bucks each at the factory Glock store, with the inserts, I think.

I also now love the Magpul 21 rounders.

I haven't had an issue with the factory extensions on my 26

[Wake27]

I meant more of the aftermarket ones.


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[TGS]

I use a Taran Tactical +5 extension on my reload, and a standard 15rd mag in the gun when carrying concealed. Taking me from 31 total rounds to 36. Easy to conceal, and a 16% increase in available ammo.

While most of my work is "plainclothes," when in full tac gear I have the pistol loaded with TT+5 extended mags, and two reloads with the TT+5 extended mags. Taking me from 46 total rounds to 61 total. That's a 32% increase in available ammo.

How long have you been using the Taran +5s, and have you had to replace the mag springs in that time?

Gio noted that they go bad quickly.

[GJM]

Not directed at anyone in particular, but I don’t understand the appeal of extensions anymore. They all seem to have issues (at least last I checked) and the best ones (TTI IIRC) are at least the price of one actual mag, if not two. Magpul has 17, 21, and 27 round magazines now and Glock has 24 rounders, plus the 19X mags that give you a factory option for 19 rounds. Why would anyone spend the money on an extension at this point?


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I suspect most people using 140mm extensions, like the Taran baseplates, are using them in USPSA, where having 22 rounds in the mag is a competition issue.

The advantage of a Taran baseplate is that it can be affixed to an OEM magazine, which are the most reliable magazines for a Glock.


How long have you been using the Taran +5s, and have you had to replace the mag springs in that time?

Gio noted that they go bad quickly.

Unlike regular OEM 17 round magazines, which seem to last nearly forever, especially in 9mm, the longer springs used in 140mm magazines have a finite life, that is a function of load/unload cycles. I have heard different numbers like 150 cycles, but never seen hard data showing testing of that. I do know that the springs in all my wife’s Glock OEM magazines with Taran extensions went soft and started having feeding issues around the same time last spring, causing us to:

1) buy a bunch of replacement springs

2) change all the extended springs out

3) get her to primarily use 17 round magazines for practice and save the 140mm mags for matches

The Taran extension on Glock OEM mags comfortably hold 22 rounds, and when 23 rounds go in, it seems like they are getting ready to stop working properly.

[KellyinAvon]

I use a two round factory extension on my a Glock 26 because it extends the grip just enough for me to get a full hand grip on the gun. As I mentioned above I carry a 19 magazine as a reload.

Me too on both counts many days including today.

[noguns]

I carry a 19x magazine as a spare whether I carry a g26 or g19 . Arent more bullets better? Just verify that the gun(s) are reliable with said magazine.

[Gio]

I use a Taran Tactical +5 extension on my reload, and a standard 15rd mag in the gun when carrying concealed. Taking me from 31 total rounds to 36. Easy to conceal, and a 16% increase in available ammo.

While most of my work is "plainclothes," when in full tac gear I have the pistol loaded with TT+5 extended mags, and two reloads with the TT+5 extended mags. Taking me from 46 total rounds to 61 total. That's a 32% increase in available ammo.

I would ditch the TTI extensions for a duty gun. They are fine for competition but need spring replacements regularly. The springs cannot withstand being fully loaded for days/weeks at a time and will cause malfunctions.

[TGS]

Would it be acceptable to use them for duty if you replaced the springs regularly? And if so, how often would be appropriate?

[10mmfanboy]

I don't own a G17 but have many magazines for it. Like others have stated, pinch your finger real hard a few times and I prefer a extended magazine for reload. I think glock has 21 or 22 round oem mags now too, I'd probably get a few of those if they work.

[Jay Cunningham]

I've recently been using 17 round PMAGs as reloads for my Glock 19s. Pretty pleased so far.

[Wake27]

I've recently been using 17 round PMAGs as reloads for my Glock 19s. Pretty pleased so far.

I’ve used the PMAGs for about as long as they’ve been available and have always been happy with them. People are weird with mags. One issue from one mag and many will swear off the whole brand, whereas the occasional flaw is expected elsewhere.


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[Wake27]

I suspect most people using 140mm extensions, like the Taran baseplates, are using them in USPSA, where having 22 rounds in the mag is a competition issue.

Interesting, I didn’t even know there were round limits, I thought it was all based off of length.


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[Cypher]

I’ve used the PMAGs for about as long as they’ve been available and have always been happy with them. People are weird with mags. One issue from one mag and many will swear off the whole brand, whereas the occasional flaw is expected elsewhere.

I have six or eight G19 Pmags that I keep in my range bag that I use for classes and range time. They've taken more of a beating over the last three years than my carry magazines do and I have yet to have an issue with them.

I have a whole bunch of g26 Pmags as well that I've never had a problem with either. And for those that don't like the extensions on a magazine the 12 round Pmag are a solid body with a base plate. Just like any other magazine

[Keebsley]

I would ditch the TTI extensions for a duty gun. They are fine for competition but need spring replacements regularly. The springs cannot withstand being fully loaded for days/weeks at a time and will cause malfunctions.

While not the TTI mags but Dawson Precision extensions, I had one loaded for god knows how long on a 19 mag. Found it the other day when I had stashed it on my manbag sidepocket. Next thing I know, I had 9mm bullet dribbling out or remaining in the mag when I attempted to unload to clean the mag.

[Gio]

Would it be acceptable to use them for duty if you replaced the springs regularly? And if so, how often would be appropriate?

I wouldn't do it. I replace all my TTI and Dawson extension springs with factory 17 coil springs (33 round mag spring) cut down to about 14.5-15 coils. This gives me much higher spring tension than the ISMI springs the TTI's and Dawson's come with. Even with these springs, I find that I need to replace them after about a year of use, and they are not kept loaded all the time like a duty mag would be. I have also found that factory RSA's tend to outrun these mag springs more so than a reduced power 11-13# spring that most competitive shooters use. You're not going to be running an 11-13# spring on a duty gun, and that 17# spring is going to result in a higher chance of malfunction.

I honestly don't even trust the factory +2 extensions. I've even seen those disassemble frequently when dropped onto concrete. We had one guy in my unit carrying a G26 with the factory +2 extension, and the extension popped off while he was in the middle of interviewing a subject causing all the rounds to fall out of the gun.

[TGS]

I have also found that factory RSA's tend to outrun these mag springs more so than a reduced power 11-13# spring that most competitive shooters use. You're not going to be running an 11-13# spring on a duty gun, and that 17# spring is going to result in a higher chance of malfunction.

Does this observation include the G19M, which was apparently modified to allow a slower slide cycling speed, allowing weaker mag springs a better chance of "Catching up"?

[Gio]

Does this observation include the G19M, which was apparently modified to allow a slower slide cycling speed, allowing weaker mag springs a better chance of "Catching up"?

The 19's generally cycle faster than the 17's because they have a stronger recoil spring. The 19M's have the same slide weight and same recoil spring weight as the gen4's, so I don't see this changing.

Overall though, the observation applies to any +5/6 extended mag and not necessarily the gun. I wouldn't use +5/6 on any brand firearm (Sig 320, M&P, etc) for duty use.

[DMF13]

How long have you been using the Taran +5s, and have you had to replace the mag springs in that time?

Gio noted that they go bad quickly.
I have had them about a year I put 60 rounds through each with no malfunctions. I use each of them once a quarter (so 20 rounds each) at quals, to see if they are still functioning fine. I don't use them for anything else. So each has had 120 rounds total with no malfunctions. Currently plan is to change the springs every two or three years.

I have used the 21 round PMags, but two of mine have had problems, so I've not considered those for duty use.

[DMF13]

I honestly don't even trust the factory +2 extensions. I've even seen those disassemble frequently when dropped onto concrete. We had one guy in my unit carrying a G26 with the factory +2 extension, and the extension popped off while he was in the middle of interviewing a subject causing all the rounds to fall out of the gun.Very odd. We had Glock 22s and 27s before we switched to the 19s. With the 27 most of us used the 10 round magazine, with the +1/2 extension, rather than the flush fit 9 round mag. They'd get dropped on the concrete frequently, at quals/training. Never heard of anyone having the factory extension fail.