Citadel CIR22MIS M-1 CARBINE Semi-Automatic .22 Long Rifle 18" Barrel Synthetic Blue Straight from the pages of history comes the new Citadel M-1 carbine. Built to the exacting specifications of the G.I. model Used by officers as well as tankers, drivers, artillery crews, mortar crews, and other personnel in both WWII theaters of battle and in Korea, this reproduction rifle comes to you chambered in the fun and economical .22 LR cartridge. The Citadel M-1 weighs in at 4.8 lbs. nearly the exact weight of the original.