Compatibility of G21 to mix and match - Page 1

Handguns » Glock

shotar Grand Admiral of the Northern Sea Joined May 2001 Posts 44885 EE 100% (19) OH, USA	Posted: 3/26/2024 8:29:39 AM EDT [Last Edit: shotar] If I buy a G21, can I drop in a 10mm g40 barrel and mags to shoot 10mm? Also, will this gun handle 45 super?
	Trusting your life to the benevolence of an armed criminal is not a strategy, it is stupid!

10mmillie Joined Aug 2001 Posts 13155 EE 100% (213) TX, USA	Posted: 3/26/2024 8:43:24 AM EDT [#1] G20 conversion barrel and mags. And yes it will handle 45 Super. The same can be done with a G30.

shotar Grand Admiral of the Northern Sea Joined May 2001 Posts 44886 EE 100% (19) OH, USA	Posted: 3/26/2024 8:57:44 AM EDT [Last Edit: shotar] [#2] Quote History Originally Posted By 10mmillie: G20 conversion barrel and mags. And yes it will handle 45 Super. The same can be done with a G30. View Quote I actually have a G40 barrel in one of my great big boxes of everything. That's why I was curious about it. I get that it would stick out a bit.
	Trusting your life to the benevolence of an armed criminal is not a strategy, it is stupid!

flcracker Member Joined May 2005 Posts 2455 EE 100% (5) FL, USA	Posted: 3/26/2024 9:29:09 AM EDT [#3] Quote History Originally Posted By 10mmillie: G20 conversion barrel and mags. And yes it will handle 45 Super. The same can be done with a G30. View Quote What are the preferred G20 conversion barrels these days? Does the extractor need to be modified/changed? Recoil spring suggestions?

10mmillie Joined Aug 2001 Posts 13156 EE 100% (213) TX, USA	Posted: 3/26/2024 10:11:47 AM EDT [#4] I’ve used Storm Lake, KKM and Lone Wolf. I didn’t change anything until I put a 24# recoil spring in when I shot 45 Super. I never tried a G40 barrel so let us know how that goes.

naes

Member

Joined May 2007
Posts 3728
EE 100% (1)

TX, USA

Posted: 3/26/2024 11:21:49 AM EDT

[#5]

Quote History

Originally Posted By shotar:

I actually have a G40 barrel in one of my great big boxes of everything. That's why I was curious about it. I get that it would stick out a bit.

View Quote

I’m pretty sure that you cannot just drop a G40 barrel in a G21.

Conversion barrels work but the standard G40 barrel will be to small in diameter and will not function.

shotar Grand Admiral of the Northern Sea Joined May 2001 Posts 44891 EE 100% (19) OH, USA	Posted: 3/26/2024 11:25:08 AM EDT [#6] Quote History Originally Posted By naes: I’m pretty sure that you cannot just drop a G40 barrel in a G21. Conversion barrels work but the standard G40 barrel will be to small in diameter and will not function. View Quote That's what I wanted to know.
	Trusting your life to the benevolence of an armed criminal is not a strategy, it is stupid!

Ming_The_Merciless Pathetic earthlings... who can save you now? Joined Sep 2009 Posts 3373 EE 100% (26) TX, USA	Posted: 3/26/2024 11:28:47 AM EDT [#7] "Conversion Barrel" is what you seek.
	Pathetic earthlings. Hurling your bodies out into the void, without the slightest inkling of who or what is out here. If you had known anything about the true nature of the universe, anything at all, you would've hidden from it in terror.

IdahoPCCinc Joined Aug 2020 Posts 3343 EE 100% (1) ID, USA	Posted: 3/26/2024 5:44:10 PM EDT [#8] I own a G41. I wanted to shoot 10mm. Double diamond made the conversion barrel. Only needed 10mm mags. The .45ACP recoil spring, extractor, ejector ran fine w/ 10mm ammo. .

Compatibility of G21 to mix and match

Handguns » Glock

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