Experience the reliability, accuracy and versatility of the FN SCAR™ 16S the civilian legal, semi-auto only versions of the U.S. Special Operations Command’s newest service rifles. The SCAR 16S is chambered in 5.56x45mm NATO (223 Rem.) The innovative gas-operated, short stroke piston system reduces fouling for greater reliability. Both the SCAR 16S and 17S feature user-interchangeable, free floating, cold hammer-forged MIL-SPEC barrels with hard-chromed bores, 30-round detachable box magazines (DBM) are available. Fully-ambidextrous operating controls instantly adapt the SCAR S-Series to any user. The receiver integrated MIL-STD 1913 optical rail plus three accessory rails enable mounting of a wide variety of tactical lights and lasers. The side-folding polymer stock is fully adjustable for comb height and length of pull