Hunting-optimized AR-15 with 20-inch fluted barrel, camouflage stock, and Mossberg Mossy Oak finish for field use. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 10 Year introduced: 2013, USA Weight: 80 oz Overall length: 39.5" Status: Active Intended use: Hunting, Varmint