Billet AR-10 in .308 Win with Seekins' precision-machined lower and long free-float handguard. Available in 16-inch and 18-inch configurations. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester / 7.62x51mm NATO Capacity: 20 Year introduced: 2013, USA Weight: 176 oz Overall length: 37" Status: Active Intended use: Precision Shooting, Hunting, Competition