This is the new Cybergun Tanfoglio Witness 1911 Semi Auto C02 Powered Airgun. This air gun features easy bb loading, fast C02 loading system and uses .177 cal (4.5mm) steel bbs. Sports a rail frame for tactical options. Come get yours today. Includes pack of .177 caliber metal bbs. Specifications: Velocity: 394 FPS Energy: 2.5 Joule Maximum Range: 239 FT Mag Capcity: 20 BBs Weight: 23 ox Accuracy: 25/25