BCM4 with RECCE-16 16-inch mid-length chrome-lined barrel in standard carbine configuration with M4 handguard. The mid-length gas system reduces port pressure and cyclic rate compared to carbine-length systems on 16-inch barrels. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2008, USA Weight: 98 oz Overall length: 32.5" Status: Active Intended use: Tactical, Sport Shooting