View Full Version : Glock Gen5 357SIG caliber conversions
HeavyDuty
12-31-2022, 11:27 AM
I have a 27.5 for which I’d very much like to have a second 357SIG barrel. Bar-Sto does a G22.5 conversion barrel, but I don’t see a G27.5 one listed. I just emailed them to ask.
https://barsto.com/product/glock-22-gen-5-357-sig-conversion/
I’m trying to remember Gen5 locking block and barrel lug compatibility. Could this one be cut and crowned to work in a G27.5?
I have a 27.5 for which I’d very much like to have a second 357SIG barrel. Bar-Sto does a G22.5 conversion barrel, but I don’t see a G27.5 one listed. I just emailed them to ask.
https://barsto.com/product/glock-22-gen-5-357-sig-conversion/
I’m trying to remember Gen5 locking block and barrel lug compatibility. Could this one be cut and crowned to work in a G27.5?
I think the 22-23 share the same… which would mean the 27 does too…
HeavyDuty
12-31-2022, 11:50 AM
I think the 22-23 share the same… which would mean the 27 does too…
Oooooh…
rawkguitarist
12-31-2022, 11:52 AM
Oooooh…
Check your PM's buddy....
I am not certain, but I believe the 19/45/47 share the same locking block, but that 17 /34 (and 26) are different. That makes me think the Gen 5 22 and 23 are different. I put a G45 lower on a Gen 5 23, using the .40 trigger assembly and ejector out of the 23, but that is in the same family.
Just checked with my Glock expert source and g5 22/23 are different kicking blocks. Also, I was told the Glock parts list is viewable on the Glock website.
1Rangemaster
12-31-2022, 12:27 PM
The company parts list can be viewed online, and it gives indications. I remember at the Glock Armorer Course a slide which had images of multiple blocks-they've evolved over 35 years.
I don't think the subcompacts are interchangeable; that is, they are unique to that size. The service size CBP guns-47&19, share the same block and recoil spring as do the 19X/45.
I'll look at it further, but I don't think you can put longer barrels in subcompacts, as referenced in OP(22 to 27).
>Glock website >"Downloadable materials>Certified Armorer parts list.
The company parts list can be viewed online, and it gives indications. I remember at the Glock Armorer Course a slide which had images of multiple blocks-they've evolved over 35 years.
I don't think the subcompacts are interchangeable; that is, they are unique to that size. The service size CBP guns-47&19, share the same block and recoil spring as do the 19X/45.
I'll look at it further, but I don't think you can put longer barrels in subcompacts, as referenced in OP(22 to 27).
>Glock website >"Downloadable materials>Certified Armorer parts list.
Confirming what I just learned from a phone call and from this post, as the GEN 522 and 23 were developed later, the locking block is now common to both model pistols, but the RSA continues to be different.
1Rangemaster
12-31-2022, 12:53 PM
I have a 27.5 for which I’d very much like to have a second 357SIG barrel. Bar-Sto does a G22.5 conversion barrel, but I don’t see a G27.5 one listed. I just emailed them to ask.
https://barsto.com/product/glock-22-gen-5-357-sig-conversion/
I’m trying to remember Gen5 locking block and barrel lug compatibility. Could this one be cut and crowned to work in a G27.5?
To clarify, sir: it does not look to me like the full size barrel lugs would work in a subcompact. The part numbers are different, which indicates a different part.
The list is a little dated and misleading; for example, there is no G47 listed, and it is available to US LE now. So, they need an update which I would guess comes early 2023.
But to your original question-Gen 5 G22 barrel to 27-nope.
Confirming what I just learned from a phone call and from this post, as the GEN 522 and 23 were developed later, the locking block is now common to both model pistols, but the RSA continues to be different.
I wonder how different the G19.5 and G19.4 locking blocks are in actuality?
I thought I had swapped slides across gens with just a back plate swap?
So while technically different… I wonder if they’re still functionally similar….
I wonder how different the G19.5 and G19.4 locking blocks are in actuality?
I thought I had swapped slides across gens with just a back plate swap?
So while technically different… I wonder if they’re still functionally similar….
There is someone posting in this thread that knows, but for sure, it is not me!
1Rangemaster
12-31-2022, 02:11 PM
There is someone posting in this thread that knows, but for sure, it is not me!
I will call into Glock US next week, so I am extrapolating here looking at the parts list online.
JCN : looks like you can have the same locking block for a 4th and 5th generation 19. But there are also notes for dates where there are changes. Thinking about it, the interchangeability starts with the CBP contract (47, 19 and a variant 26). Somewhat in anticipation(?) the 19X had a 19 locking block, and the G45 is the black variant of the 19X asked for by US LE(heck, we had someone on this forum who was somehow using a dye to blacken 19X frames!). GJM can put a 19X slide on a G45 for a two tone look, and looks like there will be interchangeability with 47s. Don’t know until they’re available…
So, current or very soon-to-be offered compatibility: 19X, Gen 5 19, 47 all share the same locking block # and I believe rsa. Gen 5 .40s-22&23, share locking blocks with above, but different rsas numbers, which means they are different. Different 9 and.40 ejectors.
Parts interchangeability started to decrease with the 4th generation; two spring rsa, but also ejectors changed-and again with the 5th gen. And, as we all know, there are a number of different fifth generation parts to include the firing pin, trigger pins, etc.
I’ll share more info as I get it. But the original question-a full size conversion barrel cut down for a subcompact - still nope.
1Rangemaster thanks for that.
I thought you could use G19 barrels in G26s?
If so, then…
1Rangemaster
12-31-2022, 03:27 PM
1Rangemaster thanks for that.
I thought you could use G19 barrels in G26s?
If so, then…
I wouldn’t know. I am looking at the online parts list. The part numbers are different, which I think almost always means a different part physically.
Switching barrels around in a department would probably result in disciplinary action. I’m pretty sure the company wouldn’t recommend it.
I wouldn’t know. I am looking at the online parts list. The part numbers are different, which I think almost always means a different part physically.
Switching barrels around in a department would probably result in disciplinary action. I’m pretty sure the company wouldn’t recommend it.
HeavyDuty
GJM
I know it might be listed differently and LEO armorers might be constrained in ways that civilians aren’t…
Here is a G22.5 slide on my G26.3 franken frame…. (with just a back plate swap).
99372
https://youtu.be/a4kOsKo8LiQ
And despite different numbers the barrel lugs look verrrrrry similar.
99373
So I’m still going to wager that you could put a G22.5 barrel in a G27.5.
1Rangemaster I think I know why the discrepancy.
The subcompact locking block is different because of the legs. But the lugs / interfacing parts are the same and same angles. So essentially and functionally they work with any combination of barrels AFAIK.
I think there was some minor geometry change to Gen 5… but functionally I think they work?
I don't know anything beyond what I was told. Since the Gen 5 .40 pistols are so new, we are all still figuring it out.
I handled a Gen 5 22 MOS today, and the trigger didn't feel quite as good as either G5 23 I have. I like having a G5 Glock 40 -- is there any argument for a 22 in addition to a 23?
I don't know anything beyond what I was told. Since the Gen 5 .40 pistols are so new, we are all still figuring it out.
I handled a Gen 5 22 MOS today, and the trigger didn't feel quite as good as either G5 23 I have. I like having a G5 Glock 40 -- is there any argument for a 22 in addition to a 23?
Yes. More guns is more betterer? :D
99374
GJM I’m not sure how the G23 shoots but the G22.5 is really easy to run fast.
https://youtu.be/voHSPwxI2BI
GJM I’m not sure how the G23 shoots but the G22.5 is really easy to run fast.
https://youtu.be/voHSPwxI2BI
What mods, if any, do you have from the stock condition?
What mods, if any, do you have from the stock condition?
It’s kind of a long story that I think bears a little context.
This is a stock - stock G20 shooting 40SW (205 Syntech).
https://youtu.be/Rw7DHg-Zb_E
That was the benchmark. So I figured that the G22.5 had a slide weight that was similar to the G20 and set out to see what I could do to optimize the platform.
I used my G17.5 mini-humpectomy frame with Talon grips and a TLR-1 flashlight to reduce muzzle rise.
The factory recoil spring was a little stiff for the 205 Syntech so I trimmed the outer dimension of the recoil spring to reduce strength (I usually cut coils, but with the dual recoil spring setup it doesn’t work well… loose coils snag on things and the factory spring has welded ends to prevent that).
Timney competition trigger to round it out.
So it’s a gamer 22 now…
The bone stock gun is about an 0.17-0.18 resonant frequency split gun in my hands with the ammo I was using, similar to the bone stock G20. The modifications are good for a few hundredths of time and a little easier sight tracking by slowing slide speed with the lighter weight spring.
If there’s anything I can give more detail on, please let me know!
fatdog
12-31-2022, 10:30 PM
is there any argument for a 22 in addition to a 23?
The G22.5 MOS will mostly fit the same holsters made for the G21.5 mos, seriously it appears the Gen5 40's are just the same dimensions externally when it comes to the slide as the GAP guns and the 20/21.
My 23.5 snicks right into my JMCK G21 holster, it fits just fine in my Galco Fletch made for the G21, the frame differences are not as important as the slide...dimensionally the G22.5 is going to be just as long and wide in the slide as the G21's of all generations.....
So if you are set up for the G21 or 20 you should not have to buy all new leather, and the mag pouches are of course the same as G19/17/34
If it turns out that Barsto will not make me a G23.5 barrel for .357 Sig, a G22.5 is likely in my future too since I am sitting on a mountain of that ammo and this configuration is likely to be ideal for that cartridge....
fatdog
01-03-2023, 02:18 PM
From Barsto this morning in response to my inquiry about a .357 barrel for a G23.5
"You can order the G-23 that
you need and just put in the
NOTES section that yours is a
Gen 5.
Thank you!
Michelle
Customer Service"
1Rangemaster
01-03-2023, 04:03 PM
That is good news. Bar-Sto has always been a good company, even back in the last century when I put one in a .45 LW Commander that I carried of duty(gasp!-still here).
And I looked at my latest Armorer manual. The G26 locking block is definitely smaller in some dimensions.
HeavyDuty
01-03-2023, 04:40 PM
From Barsto this morning in response to my inquiry about a .357 barrel for a G23.5
"You can order the G-23 that
you need and just put in the
NOTES section that yours is a
Gen 5.
Thank you!
Michelle
Customer Service"
Ugh. This was her reply to my question about the 27.5 barrel:
“No, I'm sorry, not at this time.
Thank you!
Michelle
Customer Service”
And I looked at my latest Armorer manual. The G26 locking block is definitely smaller in some dimensions.
Yes it’s smaller and the rails are shorter. That’s not the critical piece of information.
The critical piece of information is whether the mating surfaces are similar.
From the barrel lugs looks like yes.
HeavyDuty I should order a G22.5 357 Sig barrel and have it shipped to your house to test.
Then if it works you can order a “short G22.3” barrel hahaha
EDIT: I can throw my G22.5 slide on my G26.3 frame and shoot it at the range on Thursday if that helps.
HeavyDuty
01-03-2023, 05:36 PM
Yes it’s smaller and the rails are shorter. That’s not the critical piece of information.
The critical piece of information is whether the mating surfaces are similar.
From the barrel lugs looks like yes.
HeavyDuty I should order a G22.5 357 Sig barrel and have it shipped to your house to test.
Then if it works you can order a “short G22.3” barrel hahaha
EDIT: I can throw my G22.5 slide on my G26.3 frame and shoot it at the range on Thursday if that helps.
I’m thinking we need to mic my 27.5’s lug and see how it compares to your 22.5. That may be a safer intermediate test.
I’m thinking we need to mic my 27.5’s lug and see how it compares to your 22.5. That may be a safer intermediate test.
Sure, I can do that. But it looks a lot like the G26 threaded barrel I have.
HeavyDuty
07-24-2024, 06:18 AM
A reply to an earlier post today reminded me of this, I had dropped it as being impractical. Sometimes shelf testing has a benefit, because now KKM does a 27 Gen5 .357 SIG conversion barrel. But, I have to ask myself if I care anymore? A year and a half later, and I’m pretty much all HK for EDC.
https://kkmprecision.com/product/gen5-27-match-357-3-43-oal-fits-glock-g27-gen5/
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