Shim to mitigate Glock 44 high POI

Finally had enough of the crazy high POI with a Glock 44 as demonstrated by 22Plinkster

https://youtu.be/Ginch2koH8E?si=8lfEz66Wy8Vy6lDs

And the late Paul Harrell

https://youtu.be/AdrJUJD94Ew?si=wViHiFKfdhVcYxAu

That issue carried over from the factory polymer front/adjustable rear to aftermarket sights including the XS Big Dots i chose to match my 19.

My initial plan was to give up on the XS and combine a tall(er) front sight from Ameriglo with an adjustable rear to get flexibility, but either o was checking the wrong places or there really aren’t as many asjustable Glock rears as i recall from when i had no interest in an adjustable sight.

While doing the plan B search of taller front with a fixed rear i liked, one of the places i checked was Sevigny and noticed they make a front sight shim

https://sevignyperformance.com/product/g-shim/

so i decided to roll the dice and try one with the XS front.

It was a bitch to get the shim over the front sight boss that i assume will be the case with other fronts since the XS fit as well in the Glock front sight hole as other brands, but are not at all oversized.

No apparent issues with screw length accomodating the shim. Presumably it will look more in place with Sevigny sights and some others. Finally got to shoot the combo Friday night and was happy it resulted in a much more useable/predictable POA/POI out to 25 yards.

IMO, it is definitely worth the few bucks to try if the 44 POI is an annoyance.

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Why not replace the sights completely with a set from Dawson Precision? They offer different height front sights, you can order several of them and tailor to your ammo of choice.

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I wanted to keep the XS big dots to match what i have on a G19.

If it wasn’t for that intent, Dawson’s would probably be fine unless there is something to this I noticed while looking for options.

https://dawsonprecision.com/sights/glock-sights/

“PLEASE NOTE: Dawson Precision® does NOT offer rear sights for the Glock® 44 .22 caliber pistol at this time!”

Seems like another sight company company has that disclaimer too and i really have no idea why since the dovetail cut is identical to a non MOS 19 in every way.

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What ammo are you using? I shoot mine at 100yds with 40gr subs, suppressed and have no problem, same as a few friends that bought G44s….does this only affect some of them?

The dovetail is said to get wrecked easily while changing sights due to the slide being plastic, and heavier sights are claimed to ruin the dovetail via recoil. How serious all that is, I don’t know.

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Primarily Federal Automatch and CCI Blazer with some CCI standard and subsonic tossed in, all 40grain.

I am 2 for 2 with G44s hitting high, a stock model and a Talo 2 barrel kit, although i didnt try the special Talo Ameriglo fiber optic front/Glock adjustable rear.

A couple of things that i found interesting with the 44. Most high velocity .22lr seems to be subsonic out of it, which surprised me since i thought the break over point barrel length was @3-5/8".

The other was how tight the bore is which makes me wonder if that is the cause of velocity bring lower than expected. I bought one of these

MECCANIXITY Carbon Fiber Rod,… https://www.amazon.com/dp/B0B6BZ4M8R?ref=ppx_pop_mob_ap_share

to check 5.56 can alignment and found it will not even begin to start in the G44 barrels(or an old FEG), but will easily drop in Ruger 10/22 barrels. It was snugger in Henry, Remington, and S&W(one of the 3 was particularly tight).

I have read the concerns on breaking the slide swapping sights and i wouldnt want to cram an oversize one in or swap out sights often.

Hadn’t heard the concerns about steel sights and recoil. The XS is about small as a steel sught gets. but i will keep an eye on it.

I do recall reading early on mentions about larger/heavier steel sights boosting the overall slide weight up and causing cycling problems, but no idea if those comments were from people who tried it and experienced the problem of if it was a theoretical “Glock made the slide mostly polymer to get the weight down to cycle so any increase in weight is going to screw that up” kind of thing.

Haven’t seen any news on these. Alloy 44 slides with red dot cuts and alloy locking blocks.

https://www.nelsonprecisionmfg.com/firearm-accessories

I think that concern is only with larger stuff than a XS, but might explain why some brands won’t make sights for the 44.

I shoot a lot of similar ammo to yours. Whatever 40gr standard velocity found laying around in my shooting group, and I buy very large amounts of CCI Clean and whichever brand plated 45gr. I also just went through a 300 rnd box of something that had a picture of an AR on the box, might have been Automatch; don’t remember.

None of us have ever shot any of ours unsuppressed. Maybe that has something to do with it?

I don’t think I’ve ever cleaned my bore, maybe snaked it once or twice after rain or shooting wet. I sprayed some CLP down it last week to be an ablative.

All the standard velocity 40gr is subsonic. Can’t remember shooting high velocity unless it was cheap enough to be laying around.

I want one of those slides for a red dot.

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I would have swore that Automatch had an AR mixed in to the box artwork, but not so. :thinking:

https://ammo.com/ammo-review/federal-22lr-automatch-review

All of it i recall seeing has been in 325rds loose pack boxes and it is hi velocity. I get a supersonic crack out of a rifle with it, but not the G44.

Winchester M22 has an AR on the box, but is in 500 or 1000 rds packs. I assumed all hi velocity, but they show the 1255fps in the 500 rds and the 1060fps in 1000rds using the same product names and codes?

https://winchester.com/Products/Ammunition/Rimfire/M22

I did find a partial box of Aguila 60gr

https://www.aguilaammo.com/products/22-sniper-subsonic-long-rifle-subsonic-lead-solid-point

that i had previously only shot through a 1/9 twist with a Ceiner adapter. Fortunately i thought ahead and screwed the can off before trying a few through the 44 because the holes in paper were fairly out of round.


I think this is it.

Haven’t tried the Aguila SSS, but I have a AR barrel for it. The rail I wanted was OOS in the window I had to put it all together, unfortunately.

I’ve shot an entire toolbox full of CCI Clean 40gr coated through the 44.

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Just shot it and noticed my front sight is starting to lean pretty badly. Getting harder to hit steel at 75yds. Guess I’ll be buying a Dawson front at some point.

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30 yds, CCI Clean 40gr. Don’t mind the poor marksmanship, just checking POI. I had the thought that maybe I get hits at distance because it’s high at 25, but that doesn’t seem to be the case.

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At that distance using the ammo i shot i would be lucky to get any in the black while holding on the center red dot.

If it weren’t for the Harrell/Plinkster reviews(who were/are much better shots than i am) i would have went with me screwing up as the problem, but apparently some do hit high.

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Yeah, I saw one of the youtubers you posted and the dude was having problems that didn’t seem like marksmanship errors. I don’t doubt there’s a problem.

Is your rear sight adjustable? Mine is, but I don’t know how much range it has. It’s some distributer special, like TALO or Lipseys.

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This one is a Talo, the Ameriglo front and spare threaded barrel assembly were the special version adds.

https://taloinc.com/product/glock-44-threaded-barrel

The rear appears to just be the Glock oem fully adjustable rear like they stick on some centerfire pistols. Harrell/Plinkster or both mentioned hitting high with the rear bottomed out which was what i experienced with my first 44 that appeared to use a regular Glock polymer front.

The high poi occurred with the non talo 44 when i installed the XS sight set and the same issue when i popped them off to use on the Talo model.

The Talo Ameriglo sight could have a useable elevation zero, but i never tried it and never thought to compare a stock front vs Talo Ameriglo height.

Hadn’t seen a purple(if the color is coming throufg right) before or a rainbow coated can before. Neat combo!

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Speaking of the Glock 44…

I would like to think this was some weird April Fool’s meme, but watched the video where another dude did this kind of thing at a gun shop so apparently in to the palm dry firing has a small, but dedicated, group of practitioners.

It is, in fact a purple frame with a rainbow anodized can. They were out of plain black when I bought it. CGS Hydra SS…I’ve got one on my pink/purple camo painted M&P 15-22, too. That one was originally owned by my ex-wife.

Chicks love them and ask for them by name when packing for the range.

Why on earth would someone point it in their palm when pulling the trigger? Even a cleared gun should be pointed in a safe direction when dry firing.

Speaking of which, I find it interesting that the Glock manual doesn’t say much about dry-firing, since it’s normally taboo with rimfire, but required with a Glock for disassembly.

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I am avoiding dry firing a 44 much and not sure if any snap caps are around that would work to reduce my concerns.

Usually peening the chamber face is the issue with rimfires(Ruger eliminated/reduced that with their MkII series), but not sure if the 44 is affected by that or not and i am also not sure if the 44 is susceptible to breech face failures that can happen with dry firing centerfire glocks.

I had a breech face fail on a Gen 2 in 2017/2018(so about 20+ years of use) although mine just distorted out instead of the full diameter of the striker channel pop out like this 4th gen.

https://www.glocktalk.com/threads/breachface-failure.1825356/

The guy at Glock told me they had pretty much eliminated the issue while simultaneously recommending snap caps, but from the look of that Gen 4 it just looks like something that can/will happen. To me, not a overly concerning problem and no different than eventually cracking a firing pin stop on a 1911.

No snap caps i would really trust for rimfire, but i do use A zoom for centerfire.

My local shop had the regular 9mm A zooms(but not the semi auto striker ones) so i made my own by chucking a few in a drill and turned the rims down(to not engage the extractor) and cut a groove for an O ring to catch inside the chamber.

Not a big deal to DIY and probably the only way to get 10mm striker snap caps since A zoom only does the standard 10mm type.

https://www.lymanproducts.com/brands/a-zoom/a-zoom-strikercaps

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I been dry firing the hell out of my G44, shows no sign of chamber peening.

To take a wild guess, I would say between 5K-7K dry fires. Manual said nothing about it. So practice dry fire drills with it. Never broke a firing pin either. Broke a few RSA’s, but that was it.

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