Aero's DPMS-pattern AR-10 with enhanced handguard attachment and billet construction. Available in 16-inch, 18-inch, and 20-inch configurations. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester / 7.62x51mm NATO Capacity: 20 Year introduced: 2015, USA Weight: 192 oz Overall length: 36" Status: Active Intended use: Hunting, Precision Shooting, Competition