Holosun 507K

[matt7184]

http://soldiersystems.net/blog1/wp-content/uploads/2020/01/img_1323.jpg

http://soldiersystems.net/2020/01/13/holosun-optics-507k-with-same-footprint-as-sig-romeozero/

Steve Fisher did a brief IG live about this as well and seemed to like it.

[cornstalker]

Figures. Less than a week after my RomeoZero comes in...

This could get interesting. Love the side loading battery.

[David S.]

They also released a 507c (https://amzn.to/38tRW2b) 2.0 with side tray and larger buttons. Aaron Cowan and Steve Fisher have positive things to say about it and the 507k.

I was hoping for a closed emitter. This looks like a nice upgrade tho.

[cornstalker]

They also released a 507c 2.0 with side tray and larger buttons. Aaron Cowan and Steve Fisher have positive things to say about it and the 507k.

I was hoping for a closed emitter. This looks like a nice upgrade tho.

In case you didn't already know about this.

https://holosun.com/index.php?main_page=product_info&cPath=50&products_id=96

[David S.]

In case you didn't already know about this.

https://holosun.com/index.php?main_page=product_info&cPath=50&products_id=96

Thanks, I was aware of that. It doesn’t appear to be designed as a pistol optic tho.

[Ndbbm]

Thanks, I was aware of that. It doesn’t appear to be designed as a pistol optic tho.

It’s an enclosed emitter like an aim point acro. There are also pictures floating around of an improved 507 with a slide out battery drawer. https://www.instagram.com/p/B7RKDB_HZb9/?igshid=1pnecfgkaoryw

Jason

[David S.]

It’s an enclosed emitter like an aim point acro. There are also pictures floating around of an improved 507 with a slide out battery drawer. https://www.instagram.com/p/B7RKDB_HZb9/?igshid=1pnecfgkaoryw

Unless I’m mistaken, unlike the 507 series or the ACRO, the pic rail mount isn’t removable. I’m not milling my slide for an picitinny rail and mounting a rail on top doesn’t serve my purposes.

If this had a standard PMO footprint, like a DPP or RMR, I'd be all over it. Presumably that's not possible.

[Ndbbm]

Na I was mistaken on that. My apologies.

Jason

[JodyH]

Unless I’m mistaken, unlike the 507 series or the ACRO, the pic rail mount isn’t removable. I’m not milling my slide for an picitinny rail and mounting a rail on top doesn’t serve my purposes.

If this had a standard PMO footprint, like a DPP or RMR, I'd be all over it. Presumably that's not possible.
From the "Features&Tech" tab:

• Industry standard footprint for your pistol mounting needs

Maybe it's ACRO footprint?

[Erick Gelhaus]

Going back to the OP ... how would one find out if the footprint on this one would match up with the footprint of the Shield mini red dot?

[David S.]

Going back to the OP ... how would one find out if the footprint on this one would match up with the footprint of the Shield mini red dot?

http://soldiersystems.net/2020/01/13/holosun-optics-507k-with-same-footprint-as-sig-romeozero/

Link says it’s the same as SIG Romeo Zero

[Erick Gelhaus]

http://soldiersystems.net/2020/01/13/holosun-optics-507k-with-same-footprint-as-sig-romeozero/

Link says it’s the same as SIG Romeo Zero

Ok, thanks for that. Doesn't seem to answer my question.

[David S.]

Ok, thanks for that. Doesn't seem to answer my question.

Fair enough.

https://www.sigsauer.com/store/romeo-zero-1x18mm.html Says the Romeo Zero fits the Shield RMS-c and J-point footprint.

So it appears it does fit

[jandbj]

This could be a worthy little bugger. So far I’m liking the j-point on my milled G19 and was planning to go rms-c at some future point. Having more options is good.

[TicTacticalTimmy]

They also released a 507c 2.0 with side tray and larger buttons. Aaron Cowan and Steve Fisher have positive things to say about it and the 507k.

I was hoping for a closed emitter. This looks like a nice upgrade tho.

Not sure how I feel about this. That battery tray better be bulletproof. If the Holosuns last half as long as they claim to they will be obsolete by the time you need to change the battery, so how often will anyone use this feature? The side buttons do look like a nice upgrade, though my fingers have managed to get used to the little buttons on my 507C.

A side loading tray definitely makes sense for minidots that can't take a 2032 battery.

I am 90% sure the closed emitter optic uses an ACRO style mount. If it is just another pic-mounted Holosun like their slew of Micro clones the high MSRP makes no sense.

[BigD]

Aaron Cowan and Steve Fisher have positive things to say about it and the 507k.



I see these two are often quoted when discussing Holosun.

Can anyone no shit say those guys aren't getting some sort of compensation from Holosun?

Ive unfortunately become extremely cynical. I put 100x more weight on GJM 's thoughts on RDSs than I do on trainers with large Instagram followers. They rarely if ever disclose when they are getting compensated for pushing a product.

Nothing personal about Fisher and Cowan. And maybe they didn't get a bunch of free stuff from Holosun. I don't know. I'm asking.

[JodyH]

My personal experience is "out of the box" I've had a higher Trijicon and Aimpoint failure rate than Holosun and neither has failed on me if they are still working after 2 or 3 range sessions.
MRDS's are still novelties to me at this point though so my round count isn't up there with someone like George (although I am probably more of a wrecking ball off the range than he is).

[Casual Friday]

Holosun is straight up murdering the competition in terms of innovating and listening to what people want.

[jeffhughes]

I see these two are often quoted when discussing Holosun.

Can anyone no shit say those guys aren't getting some sort of compensation from Holosun?

Ive unfortunately become extremely cynical. I put 100x more weight on GJM 's thoughts on RDSs than I do on trainers with large Instagram followers. They rarely if ever disclose when they are getting compensated for pushing a product.

Nothing personal about Fisher and Cowan. And maybe they didn't get a bunch of free stuff from Holosun. I don't know. I'm asking.

Pretty sure Steve Fisher consults for Holosun.

[David S.]

I see these two are often quoted when discussing Holosun.

Can anyone no shit say those guys aren't getting some sort of compensation from Holosun?

Neither of them seems to have any sort of brand loyalty to Holosun. They run and recommend Trijicon and Aimpoint pistol mounted optics too.

So there's that.

[jeffhughes]

Neither of them seems to have any sort of brand loyalty to Holosun. They run and recommend Trijicon and Aimpoint pistol mounted optics too.

So there's that.

I saw on IG today that for concealed carry that Fisher specifically recommended Holosun and Trijicon. He said he thinks the circuitry is better with Holosun.

[Olim9]

I see these two are often quoted when discussing Holosun.

Can anyone no shit say those guys aren't getting some sort of compensation from Holosun?

Ive unfortunately become extremely cynical. I put 100x more weight on GJM 's thoughts on RDSs than I do on trainers with large Instagram followers. They rarely if ever disclose when they are getting compensated for pushing a product.

Nothing personal about Fisher and Cowan. And maybe they didn't get a bunch of free stuff from Holosun. I don't know. I'm asking.

fwiw, Aaron is sponsored by Primary Weapon Systems and refuses to do reviews on their products. His videos on any guns from them are more informational.

[Mike C]

My personal experience is "out of the box" I've had a higher Trijicon and Aimpoint failure rate than Holosun and neither has failed on me if they are still working after 2 or 3 range sessions.
MRDS's are still novelties to me at this point though so my round count isn't up there with someone like George (although I am probably more of a wrecking ball off the range than he is).

You are not the first person I've heard say this. It makes me wonder if it is a matter of production numbers or more of a qc issue. I've been fortunate with Trijicon and Aimpoint in that I've never had a failure out of the box with either but I do know a handful who have. Particularly with the RMR's. I can imagine out where you're at you put some miles on your stuff. Out on the Mesa in TX/NM I did much of the same, shit gets broken out in the desert for certain, especially when you get crazy on two wheeled dirt rockets. Good times.

[BigD]

Neither of them seems to have any sort of brand loyalty to Holosun. They run and recommend Trijicon and Aimpoint pistol mounted optics too.

So there's that.

There are levels. From “here’s a free product you didn’t even ask for but we hope you will mention to your followers” to “we will pay you to do product development” to “here’s your employment contract. In exchange for free pistols and a salary, we require X number of mentions on Facebook and IG per week. You will not be photographed with any other brand, etc.”


Again, I have no idea what, if any, deal they may or may not have.

We’ve known for years that traditional “gun writers” usually don’t bite the hands that feed them. Hey, I would want Sig to send me on an elk hunt with the new Cross rifle too. Or just get on the list to get a demo pistol so I can shoot it for a few days and churn out a “review” about it being “combat accurate” just to get a few bucks in payment from my publisher.

No one here would like say “Joe Blow from Combat Handguns reviewed the Holoson and really liked it” because we know that’s next to useless. But I don’t think most realize how blurred the lines are among some trainers. Yeah, I would hope they wouldn’t sell their soul and recommend crap products. But I also wish they would disclose what relationship they have with the maker, if they purchased the product or if it was free, etc. I doubt that’s going to happen so I just disregard it. The only thing all the STIs flooding my IG feed tell me that STI is making a push into the tactical market. That’s it.

Rant mode off.

[Erick Gelhaus]

Still nothing about the 507K on the holosun website.

The Sig site says:

ROMEO ZERO is Compatible With:

- Shield RMS-c footprint
- J-Point footprint

So, if you've got a Shield RMS-c the 507k could, might be a viable replacement.

[Alpha Sierra]

I saw on IG today that for concealed carry that Fisher specifically recommended Holosun and Trijicon. He said he thinks the circuitry is better with Holosun.

SME in shooting isn't SME in electrical engineering. We should keep comments in perspective.

[hiro]

SME in shooting isn't SME in electrical engineering. We should keep comments in perspective.

I too was wondering where he got the schematics and what the basis for his statement was 🤔

[jeffhughes]

SME in shooting isn't SME in electrical engineering. We should keep comments in perspective.

Well, he‘s certainly a very high round count user of both. I know what you mean though.

[GJM]

Well, he‘s certainly a very high round count user of both. I know what you mean though.

Anyone know how high a round count? With USPSA CO having become so popular, there is surely north of 100,000 rounds a week being shot by CO shooters in matches and practice through pistol mounted red dots. Probably 15,000 rounds just yesterday afternoon at Tuesday Night Steel.

[HCM]

Not sure how I feel about this. That battery tray better be bulletproof. If the Holosuns last half as long as they claim to they will be obsolete by the time you need to change the battery, so how often will anyone use this feature? The side buttons do look like a nice upgrade, though my fingers have managed to get used to the little buttons on my 507C.

A side loading tray definitely makes sense for minidots that can't take a 2032 battery.

I am 90% sure the closed emitter optic uses an ACRO style mount. If it is just another pic-mounted Holosun like their slew of Micro clones the high MSRP makes no sense.

Or RMR foot print. Given Holosuns other PMO are all RMR footprint I would assume they mean RMR when they say “industry standard” footprint.

[jeffhughes]

Anyone know how high a round count? With USPSA CO having become so popular, there is surely north of 100,000 rounds a week being shot by CO shooters in matches and practice through pistol mounted red dots. Probably 15,000 rounds just yesterday afternoon at Tuesday Night Steel.

What’s your experience? I seem to recall you and your wife running them at some point...

[hiro]

Anyone know how high a round count? With USPSA CO having become so popular, there is surely north of 100,000 rounds a week being shot by CO shooters in matches and practice through pistol mounted red dots. Probably 15,000 rounds just yesterday afternoon at Tuesday Night Steel.

Is anyone capturing the data? Kinda rhetorical question as it seems the best place to be doing so. That said, without some structure it's still anecdotal.

[mrozowjj]

Or RMR foot print. Given Holosuns other PMO are all RMR footprint I would assume they mean RMR when they say “industry standard” footprint.

Except rmr are a bit too wide for the slimmer pistols which is why Shield and now the Romeo 0 are taking off; literally the only optics in that segment so far.

Who knows though, maybe Trijicon will announce a RMR slim that runs of a smaller battery.

[Bart Carter]

Except rmr are a bit too wide for the slimmer pistols which is why Shield and now the Romeo 0 are taking off; literally the only optics in that segment so far.

Who knows though, maybe Trijicon will announce a RMR slim that runs of a smaller battery.

This! ^^^^^^^

[GJM]

Is anyone capturing the data? Kinda rhetorical question as it seems the best place to be doing so. That said, without some structure it's still anecdotal.

Isn’t the plural of anecdotes, data? :o

Red dot optics are easily the single most discussed thing by CO shooters — at matches, and on forums like Enos.

[David S.]

I was hoping for a closed emitter. This looks like a nice upgrade tho.

Huh....
47351

https://www.instagram.com/p/B7blM2UgUSt/?igshid=jt0cjz58nac1

[TicTacticalTimmy]

Huh....


PLEASE USE A BIGGER BATTERY THAN ACRO ;)

[vandal]

Side loading... but that door doesn't look wide enough for a 2032 (to me)


PLEASE USE A BIGGER BATTERY THAN ACRO ;)

[GearFondler]

Mailbox Wars!

[GearFondler]

PLEASE USE A BIGGER BATTERY THAN ACRO ;)Or be more efficient with the energy.

[noguns]

509T?
On the holosun site says cr1632 battery.

[cornstalker]

https://www.opticsplanet.com/holosun-hs507k-red-dot-sight.html?_iv_deal-types=new

Price looks good. Looks like 6MOA. Awesome!

Anyone want to buy a lightly used RomeoZero? Lol.

[cornstalker]

Looks like it has a little baby BUIS built in as well.

[GJM]

https://www.opticsplanet.com/holosun-hs507k-red-dot-sight.html?_iv_deal-types=new

Price looks good. Looks like 6MOA. Awesome!

Anyone want to buy a lightly used RomeoZero? Lol.

You have until at least April to sell your Zero. :(

[mistertwo]

Kenzie's Optics has the 407k and 507k available for backorder with an expected ship date of 4/1. $220 for the 407k and $290 for the 507k. I went ahead and ordered a 407k to eventually replace my Romeo Zero.

[cornstalker]

Kenzie's Optics has the 407k and 507k available for backorder with an expected ship date of 4/1. $220 for the 407k and $290 for the 507k. I went ahead and ordered a 407k to eventually replace my Romeo Zero.

That's the first I have heard of the 407k.

[Up1911Fan]

What's the difference between the 407k and 507k? I need one or the other for a 43X.

[cornstalker]

Looks like the specs on Optics planet are garbage.
407k = 2MOA dot
507k= 2MOA dot and/or 32 MOA circle

http://holosun.com/index.php/index/product/detail/id/123.html

http://holosun.com/index.php/index/product/finder.html?key=407k

[Alpha Sierra]

Huh....
47351

https://www.instagram.com/p/B7blM2UgUSt/?igshid=jt0cjz58nac1

http://holosun.com/index/product/detail/id/117.html

Looking at the pics, the bottom of the body has either a direct Picatinny or direct ACRO mount plus it comes with an adapter to the RMR footprint.

It also has Holosun's solar panel so it draws power from the battery only when the solar panel output alone isn't enough to run the thing.

Truthfully, Aimpoint should worry.

[MVS]

Looks like the specs on Optics planet are garbage.
407k = 2MOA dot
507k= 2MOA dot and/or 32 MOA circle

http://holosun.com/index.php/index/product/detail/id/123.html

http://holosun.com/index.php/index/product/finder.html?key=407k


If you actually read down in the description they give the right info. I ordered one. I doubt if my Romeo Zero will hold up until it gets here though.

[Up1911Fan]

Wish it was 6 MOA.

[David S.]

Aaron at Sage Dynamics said he's going to drop his review soon. Apparently it's a Holosun's mount, not Pic rail, ACRO or any other current solution.



http://holosun.com/index/product/detail/id/117.html

Looking at the pics, the bottom of the body has either a direct Picatinny or direct ACRO mount plus it comes with an adapter to the RMR footprint.

It also has Holosun's solar panel so it draws power from the battery only when the solar panel output alone isn't enough to run the thing.

Truthfully, Aimpoint should worry.

[Alpha Sierra]

Apparently it's a Holosun's mount, not Pic rail, ACRO or any other current solution.

If so, that's a missed opportunity and likely a big mistake.

[David S.]

If so, that's a missed opportunity and likely a big mistake.

Maybe there's patent restrictions or something. I have no idea.

[backtrail540]

The 509 on a glock

p/B7mGYeJJtAK

[STI]

These might be the droids you’re looking for.

Cowan’s 509T closed emitter review.


https://youtu.be/ZSh3Ui44osU

[GJM]

Can’t wait to get the closed emitter 509 and the new small Holosun.

[breakingtime91]

Can’t wait to get the closed emitter 509 and the new small Holosun.

canceled my sig romeo zero order today and as I wear my 365xl with grey guns module with safety I am about to preorder a small holo sun.

[YVK]

These might be the droids you’re looking for.

Cowan’s 509T closed emitter review.




Color me...unimpressed until further notice. Now, @GJM (https://pistol-forum.com/member.php?u=410) thinks I might have an ADD because apparently my concerns were addressed in that video but I am not watching it. For the third time, that is.

- Battery life. Until we've independent tests that don't involve ACRO-esque programming of your cellphone to remind you to turn that power down at night, we won't know.

- Incidentally, sliding battery trays are some of the weakest design options for the battery. Hopefully this one is China-tough.

- Reticle. Leaving aside the 2 MOA center, I totally don't get the circle jerk. I meant, circle dot. If you're using the outside circle alone, at pistol distances you can just use the entire optic window. On Eotechs the circle is used for distance offset at long distances or for leading edge on moving targets, again long distances. On a pistol? I am a pagan, give me one bright dot.

- Solar. I dunno anything about duty holsters, except most of yous seem to want a Safariland option with a hooded cover over the optic. From CCW standpoint, as an AIWB user I can definitively say that an exclamatory "Oh, sunshine" doesn't imply a direct light source when taking about my junk carry location.

- He kept saying something about a steel plate for MOS to accept this Holosun. Despite listening twice to that part, I missed whether this is the same print as ACRO, or proprietary.

I am gonna wait for a p-f.com membership and red dot moderating staff for their independent reviews.

[STI]

- He kept saying something about a steel plate for MOS to accept this Holosun. Despite listening twice to that part, I missed whether this is the same print as ACRO, or proprietary.

I am gonna wait for a p-f.com membership and red dot moderating staff for their independent reviews.

I’m on your team. I get the impression that it’s RMR footprint though that wasn’t made clear enough for me to pick up.

[MD7305]

From what I understand from his Instagram posts the footprint is proprietary to Holosun but it will have a MOS compatible plate.

[GJM]

My understanding is that the 509T uses either a proprietary “Acro style but slightly different” crossbolt attachment or an RMR footprint compatible adapter.

[Alpha Sierra]

- Reticle. Leaving aside the 2 MOA center, I totally don't get the circle jerk. I meant, circle dot. If you're using the outside circle alone, at pistol distances you can just use the entire optic window. On Eotechs the circle is used for distance offset at long distances or for leading edge on moving targets, again long distances. On a pistol? I am a pagan, give me one bright dot.

It's a 32 MOA circle. At 10 yards it covers all of 3.2 inches. At 20 it covers twice that much (still narrower than the A zone).

So no, not at all the same as blunt aiming with the entire window.

You can also switch off the circle.........

[Xhado]

- He kept saying something about a steel plate for MOS to accept this Holosun.

I think he's taking a jab at aluminum MOS plates like the C&H (https://www.amazon.com/CHPWS-Trijjicon-Glock-Adapter-plate/dp/B07D3FP414/ref=as_li_ss_tl?ie=UTF8&linkCode=ll1&tag=ratio07-20&linkId=3c5803aa95a46f8627d03673be646068&language=en_US).

[noguns]

anyone have a lead on how long until the 509t is released?

kenzies optics lets you backorder.

[GJM]

As we learned, for example, with the Acro’s battery issues, regardless of what the reviewers say, these optics often don’t show their warts until we buy them and start using them ourselves. You may recall that for months YVK was focused on the Acro’s display size, that based on published specs, he was convinced, was sixty percent of the RMR. What was not obvious was that Trijicon’s display specification included unusable display blocked by the emitter housing, and between that and how BUIS interface with the Acro display, the Acro display is effectively much larger than the RMR. What nobody here saw coming, was that the Acro’s battery endurance could be measured in days — something we initially never considered because of Aimpoint’s track record with long lasting battery performance in optics.

I have always been ho hum on Holosun pistol optics, because I didn’t think the 507 did anything better than alternatives, other than cost less. As a RMSc user, and a Romeo Zero skeptic, the 507K represents a possible small slide optic option and I am really rooting for it to be a success. As far as the 509T, I am thrilled to have another closed emitter option. YVK May have forgotten how he drenched either a RMR, a DP Pro, or both recently enough so they quit working, when shooting a class in the rain. For outdoorsy pursuits, a closed emitter is highly desirable when in the rain, snow and dirt. These two new Holosun products are very attractive to me, and I hope real world testing shows them to do what they are represented as.

[David S.]

My understanding is that the 509T uses either a proprietary “Acro style but slightly different” crossbolt attachment or an RMR footprint compatible adapter.

I understand it to be the former.


ETA: I am really rooting for this one to be a winner too. It's size seems like a good compromise for my purposes (CCW) in that it doesn't appear quite as big as the ACRO.

I'll wait my normal year for this to get beta tested out at scale.

[GJM]

I understand it to be the former.

I meant both are options, see below.

47563

[YVK]

It's a 32 MOA circle. At 10 yards it covers all of 3.2 inches. At 20 it covers twice that much (still narrower than the A zone).

So no, not at all the same as blunt aiming with the entire window.

You can also switch off the circle.........


You either gonna look at the target and see the dot be there where you're looking at, or you gonna just send it looking through the window under some circumstances. That it can be switched off is the best part of this reticle.

That said, in a spirit of openmindedness, if someone gets great result by sending it while looking through a 32 min circle, I'll be all ears.




I hope real world testing shows them to do what they are represented as.





I am gonna wait for a p-f.com membership and red dot moderating staff for their independent reviews.

See, we still agree, except you're a natural optimist, and I am a natural pessimist. For me the Holosun does have a higher hurdle to jump, considering what your dot guy told you.

[GJM]

You either gonna look at the target and see the dot be there where you're looking at, or you gonna just send it looking through the window under some circumstances. That it can be switched off is the best part of this reticle.

That said, in a spirit of openmindedness, if someone gets great result by sending it while looking through a 32 min circle, I'll be all ears.

See, we still agree, except you're a natural optimist, and I am a natural pessimist. For me the Holosun does have a higher hurdle to jump, considering what your dot guy told you.

You may not be old enough to remember the Aug’s circle of death, but it can be crazy effective. :p

Mostly, I am a single center dot fan on a pistol, but given that the reticle can switch between dot, circle and circle, I see no downside to these choices, other than I wish the dot was bigger. The circle might even help someone transitioning to a handgun optic, where the dot is out of the display but the circle is still available.

As I have reported here before, my dot guy says the single most returned optic was the Romeo 1, which suffered from failure to hold zero. That, BTW, is a really bad failure mode. The Holosun problem, as pretty well established by now, is they have a too high out of the box failure percentage. The good news is if they make a week or two, they seem to last. I would take that any day to what is happening with the original Romeo 1, or what we experienced with later model DP Pro optics.

I am default wired to be optimistic about new things, but then to test the crap out of them and see if they hold up. Hoping the K and T make the grade.

[David S.]

47575

[Bart Carter]

...I see no downside to these choices, other than I wish the dot was bigger...

This. I need at least 5 MOA. 6-8 would be better.

[CR78]

47575

Is that one that we've yet to see/discuss???

[David S.]

Is that one that we've yet to see/discuss???

Apparently it’s not listed yet. I ASSumed it was the 507k. I was wrong.

[GJM]

Apparently it’s not listed yet. I ASSumed it was the 507k. I was wrong.

It is so small, it is hard to see!

[jandbj]

If that isn’t just photoshop magic, it’s certainly interesting. Unless/Until that becomes reality, I’m definitely intrigued by the 507k.

[backtrail540]

47575

No battery either, according to another post i read on it.

Edit : found it

p/B7oNaVgB07u

[jandbj]

No battery either, according to another post i read on it.

Edit : found it

p/B7oNaVgB07u

?

ETA: I googled without any results.

[claymore504]

Would like to get a 4 inch M&P Shield PC and mount this 507K on it!!!

[backtrail540]

?

Battery free design. No idea on details. Whether fiber optic or some other design.

[Alpha Sierra]

Battery free design.

Didn't Trijicon already do that?

[RAM Engineer]

Seems like they could have made the glass a little bigger since the body got smaller.

[Rick R]

No battery either, according to another post i read on it.

Edit : found it

p/B7oNaVgB07u
That looks like it uses the standard Glock MOS slide without the MOS plate. I’ve been wondering when some manufacturer would think that was a good way to clean up the whole install.

It doesn’t have batteries but has buttons and can vary brightness, I don’t see any solar panel on top either. Sorcery!

[Xhado]

That looks like it uses the standard Glock MOS slide without the MOS plate. I’ve been wondering when some manufacturer would think that was a good way to clean up the whole install.


Doctor did something similar last year.

https://www.opticsplanet.com/noblex-docter-optics-glock-m-o-s-red-dot-sight.html

[HCM]

Battery free design. No idea on details. Whether fiber optic or some other design.

Dustin Ellermans Instagram says it has a solar panel.

[HeavyDuty]

Dustin Ellermans Instagram says it has a solar panel.

Capacitor storage, maybe?

[GJM]

Holosun appears to get the award for most improved and most innovative red dot company.

[MVS]

Holosun appears to get the award for most improved and most innovative red dot company.
Here's to hoping it all works

[MVS]

Wish it was 6 MOA.

Get the 407k then.

[GJM]

Get the 407k then.

Is the K a RMSc/Zero footprint?

[MVS]

Is the K a RMSc/Zero footprint?

That is the way I understand it. It is a 507k with just the 6 moa dot

[BigT]

This. I need at least 5 MOA. 6-8 would be better.
I had a look at the 407CO yesterday with the 8moa ring. That I think could be very usable

[Up1911Fan]

That is the way I understand it. It is a 507k with just the 6 moa dot

Thought both were 2/32 moa?

[MVS]

Thought both were 2/32 moa?

https://www.opticsplanet.com/holosun-hs407k-red-dot-sight.html

In the title and in the description this one claims to be a 6 moa with no circle. I have no actual knowledge of this except what I have read.

[Xhado]

https://www.opticsplanet.com/holosun-hs407k-red-dot-sight.html

In the title and in the description this one claims to be a 6 moa with no circle. I have no actual knowledge of this except what I have read.

Holosuns's website, which is currently down, said 2/32.

[Up1911Fan]

Holosuns's website, which is currently down, said 2/32.

Holosuns sight corrected the 407k to be a 6moa circle. I'll be ordering one.

[Bart Carter]

Holosuns sight corrected the 407k to be a 6moa circle. I'll be ordering one.

That window looks very small.

[Dismas316]

I’m in for the 407k once available. Not a fan of the circle. They talk about the hellcat and 365, hopefully this will work with the Brownells glock 43x precut slide they sell for the RMSc, Same footprint as the RMSc so should work on it.

https://youtu.be/G8GD3P48tu8

[TAZ]

Is the K a RMSc/Zero footprint?


I’m in for the 407k once available. Not a fan of the circle. They talk about the hellcat and 365, hopefully this will work with the Brownells glock 43x precut slide they sell for the RMSc, Same footprint as the RMSc so should work on it.

https://youtu.be/G8GD3P48tu8

Guess the answer to the question GJM posted is Yes and No.

The video linked by Dismas states that folks with standard RMSc cuts will need to modify the lugs slightly (around the 4:00 mark). Remove the rear and reduce the height of the front. The Brownell's slide for the G43 looks like it has the 4 lugs, so it would need to be modified for the 507K. Not sure why this slide is machined differently. The 19RMR slide I bought from them has no lugs, but instead uses #4 screws via threaded bosses inside the RMR mounting holes. Like the Duek Defense plate. Was hoping to do the Brownells route instead of modding my 48 slide, but it looks like that may not be the path unless Brownells updates the machine design.

47997

[mrozowjj]

I’m in for the 407k once available. Not a fan of the circle. They talk about the hellcat and 365, hopefully this will work with the Brownells glock 43x precut slide they sell for the RMSc, Same footprint as the RMSc so should work on it.

https://youtu.be/G8GD3P48tu8


I watched this video last night. The stand out information is it works with the Sig 365XL cut but not the others without modifying it which is kind of a bummer.

Also when looking at it on the slide it so hangs off either side which... Why bother at that point?

[TAZ]

I watched this video last night. The stand out information is it works with the Sig 365XL cut but not the others without modifying it which is kind of a bummer.

Also when looking at it on the slide it so hangs off either side which... Why bother at that point?

I think it hangs off the sides cause the 365 has a pretty large radius on the top edges of the slide. The pics I’ve seen, even the Zero hangs over a bit.

Not ideal for sure, but better than an RMR hanging over. Still want to see it on a mini Glock before I plunk down $$ on a mill job and the optic.

[cornstalker]

I see that you can order the 407k, 507k and 509 on the Holosun sight. Does anyone know if that is just a trick to get your money and then tell you it will ship in October if you are lucky?

[MVS]

I see that you can order the 407k, 507k and 509 on the Holosun sight. Does anyone know if that is just a trick to get your money and then tell you it will ship in October if you are lucky?

Not sure. When I ordered the 507K 2 months ago at Optics Planet they gave a release date of April 1 IIRC. Who knows if that will hold up.

[GJM]

Not sure. When I ordered the 507K 2 months ago at Optics Planet they gave a release date of April 1 IIRC. Who knows if that will hold up.

With what is going on in China, the US, and air freight, the question is April 1 what year!

[cornstalker]

I just called them. They said the website will let you get to a certain point, then it won't let you order. The site is being worked on, but due to current events is behind on getting corrected. The rep then said that the 509t and 507k will start shipping mid-April. FWIW..

[Mike C]

I just called them. They said the website will let you get to a certain point, then it won't let you order. The site is being worked on, but due to current events is behind on getting corrected. The rep then said that the 509t and 507k will start shipping mid-April. FWIW..

Thanks for the update, I was looking at one of these to compare with the RMSw. Did they say that ordering with Cornstalker did the rep say ordering direct was the best/fastest way to get one once they are released?

[cornstalker]

Thanks for the update, I was looking at one of these to compare with the RMSw. Did they say that ordering with Cornstalker did the rep say ordering direct was the best/fastest way to get one once they are released?

He didn't offer insights in that regard and I didn't ask.

[LittleLebowski]

I can’t find one of these anywhere.

[tlong17]

I can’t find one of these anywhere.

Everything I’m hearing across the webs is new stock again in August across various dealers. Total hearsay of course.

Seems that a few are popping up in LGS (2 or 3 at a time) and going fast.

[banzaijohn]

I just received my 507K and am trying to decide where to send my G43x for machining. It is a very impressive sight, I like it more than RMSc Shield that I have been using on another G43X. The optics are much improved over past Holsuns I have seen, just as good as the Shield. That said there is very slight distortion at the edges of the window, but you wouldn't notice unless you were looking for imperfections. The controls and the battery compartment are perfectly situated. The Holosun (1 oz) feels much more robust than the Shield (.46 oz SMSc Plastic). The reticle projects nice and crisp and the brightness settings work as expected. It is slightly longer and wider (less than a mm longer, and less than mm wider at the body, plus the battery tray cover) than the RMSc and the two holes in the front are very shallow to accommodate the battery tray. Comparison pic with SMSc that I have for my Hellcat.

5671956720

56718

[Maca]

I am going to try one on my 365xl... the Romeo zero I received yesterday, was a dud.

[MikeyCNY]

I just received my 507K and am trying to decide where to send my G43x for machining. It is a very impressive sight, I like it more than RMSc Shield that I have been using on another G43X. The optics are much improved over past Holsuns I have seen, just as good as the Shield. That said there is very slight distortion at the edges of the window, but you wouldn't notice unless you were looking for imperfections. The controls and the battery compartment are perfectly situated. The Holosun (1 oz) feels much more robust than the Shield (.46 oz SMSc Plastic). The reticle projects nice and crisp and the brightness settings work as expected. It is slightly longer and wider (less than a mm longer, and less than mm wider at the body, plus the battery tray cover) than the RMSc and the two holes in the front are very shallow to accommodate the battery tray. Comparison pic with SMSc that I have for my Hellcat.

5671956720

56718

Nice comparison pictures, thanks! I got my 507k yesterday as well. Very light but seems sturdy as you said. I wondered about the visible wires on mine but I see them in your pic as well (by the emitter). Just have to hope they won't be an issue - I know it's not really a "duty rated" optic. Very slight fishbowl-type effect when looking at text on computer monitor. I don't think it'll be an issue at the range but we'll see - I won't get to the range until next week probably. The reticle is very sharp, and even with my slight astigmatism it is still very usable. (obviously I have Rx safety lenses for the range) My only other pistol-mounted red dot is a Vortex Venom on my S&W Victory .22 cal, which is a 6 MOA compared to the 2 MOA on the 507k (407k is 6 MOA dot). The 507k is much more crisp as you'd expect.

56790

[GJM]

A great thing about the Shield is how standard sights work as BUIS. How is the 507K in this regard?

Mine is in the mail on the way to me.

[Bratch]

I have In Stock notices at a handful of sites and asked the local shop to give me a call but if anyone spots one in stock that they aren’t going to buy give me a heads up if you don’t mind.

[MVS]

A great thing about the Shield is how standard sights work as BUIS. How is the 507K in this regard?

Mine is in the mail on the way to me.

I suck at pictures, so sorry. They are very low in the window, like right at the bottom. I keep forgetting to shut the dot off and try the irons/notch to see how it works. I have had mine out 3 times now counting this morning and am enjoying it very much. Lots of benefits, and so far no glaring drawbacks. (considering its size and purpose)

[Up1911Fan]

I have Defoor's on my 43X that I'm hoping will be visible through the window whenever my 47
07K finally shows up.

[Bratch]

Scored a 507K at the LGS tonight. Got it installed and planning to hit the range at lunch tomorrow. I’ve got it set to the 32 MOA only and around the house it seems to bug my eyes a little more than an Aimpoint. I’ll see how it does on the range.

[GJM]

I have a 43X slide milled by Primary Machine for a RMSc. I pulled it and tried to put a 507K on, but while close it doesn’t fit right. Seems like the problem is in the forward bosses milled in. I am sending another 43X slide to Primary to mill the 507K.

[davisj]

Aaron Cowan just posted his review.

https://youtu.be/RN-kD4BRh1A

[GJM]

Aaron Cowan just posted his review.

https://youtu.be/RN-kD4BRh1A

20 minute Sage Dynamics video. Cliff notes version — best small red dot out there, and he would be confident carrying it. Passed the drop tests while continuing to hold zero. Works with standard height sights as BUIS. The window is smaller than other optics, and on the G48 he loses the dot from the window in recoil.

[MVS]

First disappointment with mine this morning. Got to the range doing some dry work and noticed the reticle dimming. Put a new battery in and things were back to normal. This is something I have often encountered using the factory battery in something. Hopefully the Duracell replacement lasts longer than 3 weeks.

[GJM]

First disappointment with mine this morning. Got to the range doing some dry work and noticed the reticle dimming. Put a new battery in and things were back to normal. This is something I have often encountered using the factory battery in something. Hopefully the Duracell replacement lasts longer than 3 weeks.

Could be that or something else, as in my experience Holosun optics have a not insignificant early failure rate, after which if they survive that initial period, they last pretty well.

[MVS]

Could be that or something else, as in my experience Holosun optics have a not insignificant early failure rate, after which if they survive that initial period, they last pretty well.

I was trying to be out of character and stay positive for a change. Thanks.

[DMCutter]

Got mine mounted on my new Hellcat today but have not had a chance to shoot it. I believe I'm going to like it a lot.

[DMCutter]

I had a chance to break in the Hellcat/507k combo today. The 507k does what it's supposed to do, although I didn't drop it or use it for racking the slide. The Hellcat, well, it's a wee little snappy 9. Like Aaron C, I tended to lose the reticle on recoil but the big circle dot is easy to reacquire, which will improve with practice. The trigger isn't as good as the dingus triggers on my MR918 and 920, and is a world apart from my 365. I also dropped the mag 2 or 3 times in 200 rounds, not sure if it was my right thumb or heel of my support hand. Obviously it will require much more practice and breaking in. And I may yet send the 365 off to get milled which was my original intention before the Hellcat followed me home from the shop. But no qualms about the 507k.

[GJM]

My friend just texted from the range — his 507K (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1) on his 365XL broke during initial zeroing session. Dot is top right of display.

[cornstalker]

My friend just texted from the range — his 507K on his 365XL broke during initial zeroing session. Dot is top right of display.

Bummer. It's hell being an early adopter. Some has to do it.

[MVS]

My friend just texted from the range — his 507K on his 365XL broke during initial zeroing session. Dot is top right of display.

So I see that even just being a friend of yours means one is doomed in rds reliability.

[BillSWPA]

I had a chance to break in the Hellcat/507k combo today. The 507k does what it's supposed to do, although I didn't drop it or use it for racking the slide. The Hellcat, well, it's a wee little snappy 9. Like Aaron C, I tended to lose the reticle on recoil but the big circle dot is easy to reacquire, which will improve with practice. The trigger isn't as good as the dingus triggers on my MR918 and 920, and is a world apart from my 365. I also dropped the mag 2 or 3 times in 200 rounds, not sure if it was my right thumb or heel of my support hand. Obviously it will require much more practice and breaking in. And I may yet send the 365 off to get milled which was my original intention before the Hellcat followed me home from the shop. But no qualms about the 507k.

You have provided useful information for both the 507K (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1) and the Hellcat. I am curious about the Hellcat's trigger,. How would you describe it?

[DMCutter]

Thrilled to be of some use! During dry fire there is minimal take up and a distinct wall, probably 5 lb break. When I was zeroing the dot and shooting slowly for accuracy, the break was heavy enough that I thought maybe I was side loading it and making it bind. When I was shooting rapid fire, though, the take up was not noticeable, nor was the weight of the break. This was brand new, out of the box with minimal dry firing, so it has a lot of breaking in to do. I shot 100 rounds of 115 grn range fodder and 100 rounds of 124 grn Gold Dot without any hiccups. Tomorrow will include 150 grn S&B subsonic because I have a case of it.
I will also try the flush base plates because the base of my pinky was getting pinched between the extension and bottom of the grip.

[BillSWPA]

Thrilled to be of some use! During dry fire there is minimal take up and a distinct wall, probably 5 lb break. When I was zeroing the dot and shooting slowly for accuracy, the break was heavy enough that I thought maybe I was side loading it and making it bind. When I was shooting rapid fire, though, the take up was not noticeable, nor was the weight of the break. This was brand new, out of the box with minimal dry firing, so it has a lot of breaking in to do. I shot 100 rounds of 115 grn range fodder and 100 rounds of 124 grn Gold Dot without any hiccups. Tomorrow will include 150 grn S&B subsonic because I have a case of it.
I will also try the flush base plates because the base of my pinky was getting pinched between the extension and bottom of the grip.

Thanks for the additional information. I currently carry a P365, and am seriously considering the P365XL as my first optics-ready pistol. I like the similarity with the P365 that I already like, but do not like the fact that removing the plate to expose the optics mounting system also removes the rear sight. So, unless the rear sight built into the optic proves to be the correct height, this could compromise the backup sighting system. The Hellcat mounting plate does not include the rear sight, so mounting the optic leaves the rear sight in place. A package that is comparably sized to my P365 but has one extra round in the magazine has me intrigued, but I would not change solely on that basis. The experiences of others with the gun as a whole are much more important.

[DMCutter]

I'm getting more used to the trigger but I shot my 365 back to back with the Hellcat today and I vastly prefer the Sig trigger. I'm sold on the 507k (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1) and will probably send my 365 to L&M for milling and put a 507 on it as well. I shot my MR920 after the micros and it is so much easier to shoot I think I'm almost willing to forgo pocket carry and just carry a grownup sized gun IWB.

[frozentundra]

Thanks for the additional information. I currently carry a P365, and am seriously considering the P365XL as my first optics-ready pistol. I like the similarity with the P365 that I already like, but do not like the fact that removing the plate to expose the optics mounting system also removes the rear sight. So, unless the rear sight built into the optic proves to be the correct height, this could compromise the backup sighting system. The Hellcat mounting plate does not include the rear sight, so mounting the optic leaves the rear sight in place. A package that is comparably sized to my P365 but has one extra round in the magazine has me intrigued, but I would not change solely on that basis. The experiences of others with the gun as a whole are much more important.

Videos from SHOT show indicated that the 407K/507K integrated rear sight is supposed to regulate correctly with the P365XL front sight. At least that is what the rep was saying. It sounded like they were focusing on this pistol when designing the optic. I have not heard any real world reports yet, and we all know that pistols can regulate differently from sample to sample.

On my girlfriend's P365XL the top edge of the rear sight measures .225" from the top of slide area directly behind the sight that acts as a raised rear boss to the back of the plate/optic.

It looks to measure approximately between .305"-.310" from the top of rear sight to bottom of the optic cut, but I didn't pull the plate to measure it. This number is just 'close' because of the angles involved and the tools I have to hand.

Perhaps someone can provide a measurement of a 407K/507K optic body or an installed optic to the top of that rear boss? That number could be compared to the factory P365XL sight measurements on the copy I have.

[Bratch]

Thanks for the additional information. I currently carry a P365, and am seriously considering the P365XL as my first optics-ready pistol. I like the similarity with the P365 that I already like, but do not like the fact that removing the plate to expose the optics mounting system also removes the rear sight. So, unless the rear sight built into the optic proves to be the correct height, this could compromise the backup sighting system. The Hellcat mounting plate does not include the rear sight, so mounting the optic leaves the rear sight in place. A package that is comparably sized to my P365 but has one extra round in the magazine has me intrigued, but I would not change solely on that basis. The experiences of others with the gun as a whole are much more important.

I was curious after reading this. I fired 3 rounds at 10 yards using the back up rear on the 507k (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1) on my P365XL. POA/POI was pretty good POI May be a hair high but It could have been me.

57474

[BillSWPA]

I was curious after reading this. I fired 3 rounds at 10 yards using the back up rear on the 507k on my P365XL. POA/POI was pretty good POI May be a hair high but It could have been me.

57474

This is good to know.


Sent from my iPhone using Tapatalk

[MVS]

I was curious after reading this. I fired 3 rounds at 10 yards using the back up rear on the 507k on my P365XL. POA/POI was pretty good POI May be a hair high but It could have been me.



Thanks for posting. I will try and remember to see what mine does this weekend.

[MikeyCNY]

My friend just texted from the range — his 507K on his 365XL broke during initial zeroing session. Dot is top right of display.

That's a shame - hopefully he was just unlucky with his sample. I wonder how long it'll take for the warranty claim.

I haven't been back to the range since I got my 507k - waiting on holsters. (Blackpoint Tactical, JM Custom and Vedder) Heading to the range next week whether I have holsters or not..

[Erick Gelhaus]

Regarding the 507K (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1) and the Performance Center 4" Shield ... how much material needs to be removed from the two forward bosses?

[JCN]

FYI if people are looking for a front sight on a P365 milled for a 507k (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1), I paid to have one made a couple years ago at the proper height (taller is needed over factory when using it on the shorter slide P365 compared to the XL).

66637

I don’t think it’s listed on their site but you don’t have to pay set up fees if you order one with these specs. This was the invoice when I ordered a couple more.

It works for POI/POA with a Maple Leaf milled P365.

[Crusader8207]

FYI if people are looking for a front sight on a P365 milled for a 507k (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1), I paid to have one made a couple years ago at the proper height (taller is needed over factory when using it on the shorter slide P365 compared to the XL).

66637

I don’t think it’s listed on their site but you don’t have to pay set up fees if you order one with these specs. This was the invoice when I ordered a couple more.

It works for POI/POA with a Maple Leaf milled P365.

Thats awesome! I just had my 365 milled by Maple Leaf too. Will order these. Thank you!!

[JCN]

Thats awesome! I just had my 365 milled by Maple Leaf too. Will order these. Thank you!!

You are welcome! Pro tip, the factory front sight is really tight in there.
I had to take a big ass brass punch, hammer and a vice grip (with non-marring inserts) to get it out.

The front sight WILL take about 10 minutes of careful filing to fit the dovetail. If any issues or need help, let me know!

[GJM]

Regarding the 507K (https://www.amazon.com/HOLOSUN-HS507K-X2-Classic-Multi-Reticle/dp/B08G6SSTGX/ref=sr_1_1?crid=25D9PY6OVF4UT&dchild=1&keywords=holosun+507k&qid=1611532451&sprefix=Holosun+507%2Caps%2C181&sr=8-1) and the Performance Center 4" Shield ... how much material needs to be removed from the two forward bosses?

So the PC Shield is cut for the RMS Shield, and how do you like the pistol?

[Crusader8207]

You are welcome! Pro tip, the factory front sight is really tight in there.
I had to take a big ass brass punch, hammer and a vice grip (with non-marring inserts) to get it out.

The front sight WILL take about 10 minutes of careful filing to fit the dovetail. If any issues or need help, let me know!

Awesome. Will do!! I'll order them tomorrow.

[Erick Gelhaus]

So the PC Shield is cut for the RMS Shield, and how do you like the pistol?

Yes ... it came from the PC with the Brit Shield mrds on it. That sight lasted about 600 rds before it died. Interestingly, like every other PMO I've broken while it was on any of my M&Ps - the mechanical windage adjustment failed. Not the electronics, the mechanical windage adjustment.

The company replaced it as soon as the mail system allowed.

Then, I broke the plastic sleeve for the striker assembly. S&W replaced it pretty quickly and it's repaired. I've been waiting on the 507K and wanted it so the next few hundred rounds I put through it have some benefit beyond checking the dot.

Taking those issues into consideration, I do like the PC Shield. Once I can get another two hundred rounds through it without issue, it'll be back in daily use.

[Kevin Spencer]

Has anyone put a 507K on a full size pistol? Saw a picture of one on Kyle Defoor's Staccato and I'm curious how it would work on a Glock 17.

The 507K is 0.02" narrower than the G17 slide, and I'm curious if the window will ride low enough to retain standard height sights, or at least shorter tall sights.

A search shows that MapleLeaf offers this cut, but they don't have any installed pics.

Curious what everyone thinks, and I understand there is a trade off on window size.

[Jay585]

Has anyone put a 507K on a full size pistol? Saw a picture of one on Kyle Defoor's Staccato and I'm curious how it would work on a Glock 17.

The 507K is 0.02" narrower than the G17 slide, and I'm curious if the window will ride low enough to retain standard height sights, or at least shorter tall sights.

A search shows that MapleLeaf offers this cut, but they don't have any installed pics.

Curious what everyone thinks, and I understand there is a trade off on window size.

Got my 507K on a G19 Gen5 mounted via a CHPWS plate. I can use the integrated rear sight notch and line it up with my OEM Glock front sight, though I haven't actually tried shooting it that way.

[JM Campbell]

Got my 507K on a G19 Gen5 mounted via a CHPWS plate. I can use the integrated rear sight notch and line it up with my OEM Glock front sight, though I haven't actually tried shooting it that way.

So it has the standard rmr/507c screw locations? Sorry I’m a little confused.


Sent from my iPhone using Tapatalk

[LittleLebowski]

We need to crowdsource a chart.

[Crusader8207]

We need to crowdsource a chart.

Here's some good info:


https://optics-info.com/footprints-on-red-dot-sights/

[Jay585]

So it has the standard rmr/507c screw locations? Sorry I’m a little confused.


Sent from my iPhone using Tapatalk

Sorry, I was trying to say with a CHPWS plate (which mounts optics lower than the Glock plates) my Holosun works with the OEM glock front sight

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[BobLoblaw]

I'd love to see a Glock 43X/48 MOS iron sight comparison with CHPWS mill posts/direct mount 507k vs. 507k w. adapter plate if anyone has seen one. Wondering if that 0.045" or whatever makes a noticeable difference.

[Erick Gelhaus]

If you have a Performance Center 4" Shield and are considering the 507K ... not only are the front recoil bosses taller than the depth of the sight's front holes, it appears they are larger diameter wise. You'll need to be extremely explicit (or much more than I was) with whatever gunsmith you take the slide.

[GJM]

If you have a Performance Center 4" Shield and are considering the 507K ... not only are the front recoil bosses taller than the depth of the sight's front holes, it appears they are larger diameter wise. You'll need to be extremely explicit (or much more than I was) with whatever gunsmith you take the slide.

I just bought a non optic cut PC 4 inch Shield, and planned I would send it to Primary Machine to direct mill a 507K, rather than worry about S&W cut.

Was reading the new 507K manual a few days and realized it doesn’t have an auto mode, just manual and lock out. Not sure how I missed that, but in fairness I loaned my 43X/K to YVK some months ago.

[23JAZ]

I'd love to see a Glock 43X/48 MOS iron sight comparison with CHPWS mill posts/direct mount 507k vs. 507k w. adapter plate if anyone has seen one. Wondering if that 0.045" or whatever makes a noticeable difference.
Direct mill 507K. Cut is .125” deep. Barely see the Agents.
67033

[dontshakepandas]

My slide is at Battlewerx getting cut for a 507k right now. They go a little deeper than most (.170”) so it works with stock sights.

Pic is from their website. I’m going with all black sights.

https://uploads.tapatalk-cdn.com/20210204/62bca8f592f9da97b44c23e2dbd2612c.jpg

[23JAZ]

My slide is at Battlewerx getting cut for a 507k right now. They go a little deeper than most (.170”) so it works with stock sights.

Pic is from their website. I’m going with all black sights.
On the left side I am sure it will be fine but on the right side I don’t see getting much engagement.
https://uploads.tapatalk-cdn.com/20210204/62bca8f592f9da97b44c23e2dbd2612c.jpg
Id be curious to know how much thread engagement you get with that low of a cut.

[dontshakepandas]

Id be curious to know how much thread engagement you get with that low of a cut.

They use integral indexing posts instead of just drilled holes so you get thread engagement for most of the height of the optic body. I would guess this actually allows for more thread engagement than a standard cut and probably significantly better than plate system.

https://uploads.tapatalk-cdn.com/20210204/3865f1c65ba96b064c71c1ee843a5c8c.jpg


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[23JAZ]

They use integral indexing posts instead of just drilled holes so you get thread engagement for most of the height of the optic body. I would guess this actually allows for more thread engagement than a standard cut and probably significantly better than plate system.

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Interesting. I thought the 507K was not compatible with those posts.

[RJ]

They use integral indexing posts instead of just drilled holes so you get thread engagement for most of the height of the optic body. I would guess this actually allows for more thread engagement than a standard cut and probably significantly better than plate system.



How is this working out? And I'm assuming that there is no plate required, the 507K just screws on to these posts? (I have a non-MOS G48 and plan to get it milled to accept a 507K "soon").

[dontshakepandas]

How is this working out? And I'm assuming that there is no plate required, the 507K just screws on to these posts? (I have a non-MOS G48 and plan to get it milled to accept a 507K "soon").

I actually just got the slide back a few days ago and shot it for the first time yesterday.

It does not use a plate, the optic mounts directly to the slide.

I’m using a set of standard height Ameriglo Defoor sights and they cowitness in the bottom 1/4th of the window and are very unobtrusive. I’m surprised how big and usable the window feels on such a small optic.

I still prefer the way my 45 and 19 shoot to the 43x, but it seems very capable and I’m very happy with how it turned out. If it holds up it’s going to be a very nice carry piece for when I need something smaller.

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[davisj]

I ordered a 507K Green Dot from Kenzie’s this morning. Opted for green because that color has suited my vision better than orange when using Ameriglo Bold sights in the past. I have a 509T at Jagerwerks so this dot will enable me to compare the colors. These are my first venture into pistol dots but I’ve used Aimpoints for years on rifles.

[frozentundra]

Does anyone know if the Holosun "K" series will mount to a S&W Shield Plus OEM optic cut without slide modification? Does it require removing bosses on the slide?

[Nephrology]

Zeroed my Glock 43/507k combo today. Survived the range trip just fine but one of the screws did back out maybe 1/16th of a turn. I don't have a RMRcc to compare it against but it is a nice optic. Well worth the ~$225 or whatever I paid for it.

[GJM]

Does anyone know if the Holosun "K" series will mount to a S&W Shield Plus OEM optic cut without slide modification? Does it require removing bosses on the slide?

Will not work without mods.

[Nephrology]

One more general dot question. One of teh mounting screws on my 507k came just a tiny bit loose maybe 1/12th or a turn or less. I torqued it back down. Originally mounted to 15in/lb with loctite 248.

question: should I plan to remove this screw/clean/reapply loctite before I hit the range next?

[RJ]

One more general dot question. One of teh mounting screws on my 507k came just a tiny bit loose maybe 1/12th or a turn or less. I torqued it back down. Originally mounted to 15in/lb with loctite 248.

question: should I plan to remove this screw/clean/reapply loctite before I hit the range next?

I would be tempted to just torque stripe it with an oil based sharpie and monitor the head for movement during the next shooting session. If it doesn't move, you are good. If it does, yeah, at that point I'd remove and reinstall. But if your inner OCD is going off of course I don't think you'd be hurting anything to R/R.

What tool are you using to torque it?

[Nephrology]

I would be tempted to just torque stripe it with an oil based sharpie and monitor the head for movement during the next shooting session. If it doesn't move, you are good. If it does, yeah, at that point I'd remove and reinstall. But if your inner OCD is going off of course I don't think you'd be hurting anything to R/R.

What tool are you using to torque it?

Already made witness marks with a sharpie - thats how I noticed it moved a tad.

I used the wheeler FAT wrench, not the most accurate but seems reasonably good, especially given relatively low torque required for these optics. .

edit: I think I will be OK for CCW purposes for now but will plan to bring it + the other gun whose screw moved a touch to my next planned range session. Probably will remove, clean, re-loctite + re-torque >24h in advance just to be 100%. I am hoping to get out there next week as I have flexibility through the end of the month, but one July begins I will be on two very intense/important rotations ( surgery then hospital medicine) so want to get all of my shit squared away before then.

Next break will be a week of downtime in early September between the two services and will probably have a bunch more slides to re-zero then so planning my range time carefully.