The Rock River Arms LAR-8 is an AR-10-pattern rifle chambered in 7.62x51mm NATO. It uses RRA's two-stage NM trigger as standard and a 16-inch chrome-lined barrel. The LAR-8 uses DPMS-pattern magazine geometry, giving it broad magazine compatibility. Type: Semi-Auto Rifle Action: Direct Impingement Caliber: 7.62x51mm Capacity: 20 Year introduced: 2006, USA Weight: 9 oz Overall length: 34.5" Status: Active Intended use: Hunting, Range, Home Defense