European-market commercial HK416 variant imported to the US as a premium piston AR-15. Features HK's match-grade cold hammer-forged barrel. Type: Carbine Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2014, Germany Weight: 135 oz Overall length: 36.5" Status: Active Intended use: Sport Shooting, Tactical