"A precise, top-quality .22 L.R. AR-Style rifle, the Walther Hammerli TAC R1 M-LOK Semi-Auto Rifle sets a new standard for performance and value. Great for target shooting or practice, this lightweight rifle offers great versatility and fit with its 5x adjustable stock, flip-up sights, and 13"" M-LOK handguard. Lightweight all-aluminum receiver features a tunable bolt carrier. Featuring a 1/2""-28 threaded muzzle, the gun's 16.1"" barrel comes with a removable flash hider. Overall length: 35.8"". Precision .22 L.R. AR-Style rifle at a great value Great for target shooting or practice 5x adjustable stock Flip-up sights 13"" M-LOK handguard Lightweight aluminum receiver and handguard Tunable bolt carrier 16.1"" barrel with threaded muzzle and a removable flash hider"