The Rock River Arms LAR-15 Entry Tactical is a professionally-built AR-15 featuring a 16-inch chrome-lined barrel and RRA's two-stage NM trigger as standard. RRA became known for including a quality two-stage trigger at base pricing rather than the single-stage found in budget alternatives. Type: Semi-Auto Rifle Action: Direct Impingement Caliber: 5.56x45mm Capacity: 30 Year introduced: 2003, USA Weight: 7.1 oz Overall length: 32.5" Status: Active Intended use: Home Defense, Range, Duty