AR-15 with Noveske's enhanced bolt carrier, 18-inch stainless Criterion barrel, and NHR Switchblock adjustable gas system. Built for precision-oriented competition and patrol use. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2006, USA Weight: 105.6 oz Overall length: 36.5" Status: Active Intended use: Tactical, Precision