The SOCOM 16 and SOCOM II are largely identical to the standard M1A, but feature a 16.25-inch (413 mm) barrel, rather than the standard model's 22-inch (560 mm) barrel. The specially designed muzzle brake is designed to reduce the increased recoil produced by the shorter barrel. In addition to the top accessory rail for optics, the rifle has enclosed Garand-style iron sights, with tritium inserts for low or dim light conditions. The rifle will accept any M14magazine, with typical capacities of 5, 10, or 20 rounds.