Available to order $178.33 Silencerco Threaded Barrel for Glock 21 .45 ACP 5.2 Inch Barrel .578x28 Threads Black Nitride Finish
Available to order $166.41 Gemtech GM-45 And Blackside-45 LID Piston Core For Glock 21 Factory Barrel, HK USP-T/USP-CT/45/45C Threaded M16X1LH TPI