Gemtech Lunar-45 .45ACP/9mm Black Cerakote Finish 6.9 Inches 1.375 Diameter Includes .578-28 Piston - All NFA Rules Apply Available to order on-line. Ships in 5-14 days $782.00
Gemtech GM-45 And Blackside-45 LID Piston Core For Glock 21 Factory Barrel, HK USP-T/USP-CT/45/45C Threaded M16X1LH TPI Available to order on-line. Ships in 5-14 days $166.41