The MK17 Compact Semi-Automatic Sniper System (C-SASS) is a variant of the SWORD Defense Systems MK17 rifle and has been purpose built to serve as the ultimate semi-automatic sniper system. SWORD started with an AR-10 design familiar to both U.S. and coalition troops, then completely changed the operating system with our proprietary and robust short-stroke piston system.  The C-SASS comes equipped with a 16″ barrel with a 1:7.5 twist rate. The C-SASS utilizes a free-floating forend system with MLOK compatible slots at the 3, 6, and 9 o’clock positions along with a full length picatinny at the 12 position. We upgraded the traditional AR-style rear charging handle with a non-reciprocating side charging handle that eliminates negatives such as charging handle impingement malfunctions and blow back in the operators face during suppressed operation. The rifles’ ergonomics make weapon manipulation easy and intuitive due to its ambidextrous bolt catch/release control design, located outside the trigger well and built into the rifle, which allows the end-user to maintain fire control while using the same lever for catch and release. The C-SASS is available as a stand alone rifle or as a complete weapons system which includes suppressor, bi-pod, sling and optic. Employment of this rifle system gives the end user a lighter weight, more accurate, and reliable answer to the compact sniper system requirement.