Ultralight AR-15 with a carbon-fiber wrapped 16-inch stainless barrel, carbon-fiber handguard, and titanium muzzle device. Sub-5-pound complete weight. Christensen Arms applies aerospace manufacturing standards to rifle production. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2018, USA Weight: 4.9 oz Overall length: 35" Status: Active Intended use: Hunting / Range / Competition