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Papa "J"
06-23-2010, 5:28 AM
I need some 22 Mags and someone offered Mags for a 31 and said they will fit.

Couple of questions.

Will I have any feeding issues?

Will the mags drop out unassisted when I hit the mag release?

Will they fit flush like my current factory mags do?

NotEnoughGuns
06-23-2010, 5:38 AM
model 31 is 357 sig in a small frame. I don't think they would work in a large frame glock. You'll need model 21 mags.

cmace22
06-23-2010, 6:37 AM
I need some 21 Mags and someone offered Mags for a 31 and said they will fit.

Couple of questions.

Will I have any feeding issues?

Will the mags drop out unassisted when I hit the mag release?

Will they fit flush like my current factory mags do?


The only mags to work in a 21 are 21 and 20 mags (45acp and 10mm)

Papa "J"
06-23-2010, 6:53 AM
Sorry I need mags for a 22. Not 21

Lancear15
06-23-2010, 7:03 AM
Glock.com/magazines (http://www.glock.com/english/index_magazines.htm)

31 is a .357, so it is a no go.

dagger10k
06-23-2010, 7:10 AM
It should work. .357 and .40 use the same magazines, and the frame size is the same.

Papa "J"
06-23-2010, 7:19 AM
Just got off the phone with the factory. they said it will fit but may encounter feeding issues.

DannyZRC
06-23-2010, 9:26 AM
I don't think you have a serious worry about feeding issues.

357SIG and .40 cases are identical on the *** end, SIG cases are slightly longer and obviously have that 9mm neck/shoulder.

BossHog
06-23-2010, 9:46 AM
model 31 is 357 sig in a small frame. I don't think they would work in a large frame glock. You'll need model 21 mags.

That's incorrect. The Glock model 31 (357SIG) is a large framed model that is exactly the same size as the Glock model 22 (40 S&W). The G31 mags will fit perfectly in a G22 and, while not officially recommended by Glock, the G31 mags should feed 40 S&W rounds without any failures in your G22.

ETA: I've swapped mags between my compact Glock models G23 (40 S&W) and G32 (357SIG) and they both fed rounds without any issues.

Corbin Dallas
06-23-2010, 11:17 AM
That's incorrect. The Glock model 31 (357SIG) is a large framed model that is exactly the same size as the Glock model 22 (40 S&W). The G31 mags will fit perfectly in a G22 and, while not officially recommended by Glock, the G31 mags should feed 40 S&W rounds without any failures in your G22.

ETA: I've swapped mags between my compact Glock models G23 (40 S&W) and G32 (357SIG) and they both fed rounds without any issues.


What NotEnoughGuns was speaking of is the OP originally listed the need for G21 magazines when he meant G22 magazines.

The G21 is a large frame Glock. The G31 and G22 are considered standard frames.

NotEnoughGuns
06-23-2010, 6:35 PM
What NotEnoughGuns was speaking of is the OP originally listed the need for G21 magazines when he meant G22 magazines.

The G21 is a large frame Glock. The G31 and G22 are considered standard frames.

exactly. 357sig and 40sw mags are interchangeable, 357 and 45acp are not.