The HK MR762A1 is the semi-automatic civilian version of the HK417 7.62x51mm assault rifle used by German special operations forces and several other elite units worldwide. It uses the HK proprietary short-stroke gas piston system with a polygonally rifled cold-hammer-forged barrel. The MR762A1 includes the HK adjustable stock and full M-LOK rail system. Type: Rifle Action: Semi-Automatic Caliber: 7.62x51mm NATO Capacity: 10 Year introduced: 2012, Germany Weight: 120 oz Overall length: 37" Status: Active Intended use: military, precision, tactical