Springfield Armory M1A SOCOM II with 16.25-inch barrel and extended Picatinny rail for optics and accessories. Improved trigger and muzzle brake over the original SOCOM 16, optimized for close-range use with a full-power rifle cartridge. Type: Carbine Action: Gas-Operated Caliber: 7.62x51mm NATO Capacity: 20 Year introduced: 2004, USA Weight: 224 oz Overall length: 44.3" Status: Active Intended use: self_defense, sport