Are 9mm glock mags and 45 acp glock mags the same size?

[Stationary Smell]

I have a 9mm AR that I put together not too long ago that has a dedicated glock magazine lower. I'm curious if a glock 13 magazine would fit in this lower so I could build a 45 acp upper. Thanks for any input!

 

[JohnBiltz]

The .45 round is longer than a 9mm round. So I doubt it if it was made for 9mm.

 

[grampajack]

To my knowledge, no.

 

[FL-NC]

No

 

[Zerodefect]

.45 mags are much larger.

 

[JR24]

Unless the lower has extra space, you are gonna have trouble. .45 mags are significantly fatter.

 

[Jim Watson]

What is a Glock 13?

 

[JR24]

What is a Glock 13?

I am sure they meant a Glock 13 round .45 (read: Glock 21) mag.

 

[Stationary Smell]

What is a Glock 13?

Oops, I meant 21... I'm clearly not a glock guy. Thanks for all of the info guys!

 

[JR24]

Ill get the calipers put this afternoon and give ya the dimensions of the 9mm vs .45 in case your magwell is wide enough.

 

[Stationary Smell]

Ill get the calipers put this afternoon and give ya the dimensions of the 9mm vs .45 in case your magwell is wide enough.

Cool, that'd be great! This has me curious now, could they be categorized into "small frame" and "large frame" categories? For example is a 9mm and .40 mag the same size and a 45 acp and 10mm the same? From a manufacturing standpoint it seems like they'd want some sort of standard.

 

[1KPerDay]

Cool, that'd be great! This has me curious now, could they be categorized into "small frame" and "large frame" categories? For example is a 9mm and .40 mag the same size and a 45 acp and 10mm the same? From a manufacturing standpoint it seems like they'd want some sort of standard.

Yes. 9/40/357 doublestack glock mags are the same dimensions and 10/45 doublestack glock mags are the same dimensions. the 10/45 mags are quite a bit larger than the "regular" glock mags.