.45 SilencerCo Threaded Barrel for Glock 21

SilencerCo threaded barrel for your Glock 21 in 45 ACP .578"-28

“GLOCK” is a registered trademark of Glock, Inc.  This product is neither sponsored by nor affiliated with Glock, Inc.

Fit guide from Silencerco:

Glock Barrel Compatibility: Silencerco threaded barrels are compatible with the following Glock handgun generations:

• G21: No Gen 5