Cobalt Kinetics BAMF (Battle Arms Manufacturing Foundation) with 16-inch stainless steel barrel and Cobalt's proprietary Automated Bolt Catch (ABC) system, which automatically catches the bolt after the last round and releases it when a new magazine is inserted. Full ambidextrous lower controls. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2016, USA Weight: 115 oz Overall length: 33.5" Status: Active Intended use: Competition, Tactical, Sport Shooting