Mil-spec AR-15 carbine with a 16" mid-length gas system barrel. BCM's flagship configuration, built to Crane Naval Surface Warfare Center specifications. The standard by which mil-spec AR-15s are judged. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2004, USA Weight: 128 oz Overall length: 32.5" Status: Active Intended use: military, sport, home defense