The FN SCAR 17S is the civilian semi-automatic version of the SCAR-H (Mk 17). Heavy-barrel variant chambered in 7.62x51mm NATO. Short-stroke gas piston, monolithic upper rail, ambidextrous controls. The gold standard for semi-auto battle rifles. Type: Semi-Auto Rifle Action: SA Caliber: 7.62x51mm NATO Capacity: 20 Year introduced: 2009, Belgium Weight: 96 oz Overall length: 41.25" Status: Active Intended use: Tactical, Precision, Competition