Crosman Semi-Auto Air Pistol This semi-automatic CO2 powered pistol combines hand-held comfort with quality components It features a velocity of up to 480 feet per second and an accessory rail under the barrel Belt holster, 1500 BBs, 5 CO2 cartridges The C11 also features a removable magazine for BBs, as well as grips that slide back for easy replacement of CO2 Powerlets Caliber: 0.177