The FN SCAR 20S is a precision marksman variant of the SCAR-H with a 20-inch heavy barrel and adjustable target stock. Designed for extended-range semi-automatic fire. Used by US Special Operations forces as the Mk 20 SSR. Type: Semi-Auto Rifle Action: SA Caliber: 7.62x51mm NATO Capacity: 10 Year introduced: 2018, Belgium Weight: 128 oz Overall length: 43.5" Status: Active Intended use: Precision, Military, Competition