Chambered in 7.62x51mm NATO (308 Win.), the SCAR 17S features a free-floating, cold hammer-forged MIL-SPEC barrel with hard chromed bore. Fully-ambidextrous operating controls instantly adapt the SCAR 17S to any user or any shooting position. The receiver-integrated MIL-STD 1913 optical rail plus three accessory rails enable mounting of a wide variety of scopes, electronic sights, tactical lights and lasers. The telescoping, side-folding polymer stock is fully adjustable for comb height and length of pull, making it ideal for Heavy Metal 3-Gun matches.