The Crosman DPMS SBR Full-Auto CO2 Air Rifle shoots .177 BBs in either semi- or full-auto fire modes, at up to 430 fps. The SBR (Short Barrel Rifle) is powered by two, 12-gram, CO2 cartridges, which are housed in the 25-round detachable magazine. An adjustable, 6-position buttstock adapts to your exact fit. A quad-rail fore-end provides for attaching aftermarket tactical accessories, and comes equipped with folding front and rear sights. An angled foregrip and a full AR-style pistol grip enhance shooter control. The Crosman DPMS SBR Full-Auto CO2 Air Rifle is realistic in weight, as well as operation controls and function. Includes 1 magazine and a BB speedloader. Shoots in either semi- or full-auto modes Propels .177 BBs at up to 430 fps Powered by two CO2 cartridges Folding front and rear sights 25-round magazine 6-position buttstock Quad-rail fore-end Angled foregrip Full pistol grip