Crosman R1 CO2 Powered Full/Semi-Automatic BB Rifle - Black Tactical, Full/Semi-Auto BB rifle Caliber: BB Blowback Action 25 round, drop out magazine with CO2 housing Velocity up to 430 fps Smooth Steel Barrel Realistic Weight and Functions Picatinny Quad Rail 6-Postion Adjustable M4 Stock Removable Front & Rear Sights Flip-up back up iron sights (BUIS) Realistic weight and functions To Order CLICK HERE