Angstadt Arms Vanquish 22, Integrally Suppressed Barrel, .22LR, 18" Barrel, 0.92" Diameter, 416R Barrel, 6061 Aluminum Shroud, Cerakote Finish, Black, Standard Barrel Install, Fits AR-22 Platform, Compatible with CMMG 22LR Bolt, 21.5oz AAVIS22A0R