Mid-length gas system AR-15 with a 16-inch chrome-lined barrel and BCM MCMR M-LOK handguard. BCM is the standard reference for mil-spec quality AR-15s among US military and law enforcement procurement. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2016, USA Weight: 6.8 oz Overall length: 35" Status: Active Intended use: Patrol / Military / Range