•Direct impingement gas system w/rotating locking bolt •Forged Black hardcoat anodized 7075-T6 aluminum receivers •M1913 Picatinny flat-top A4 upper •Ambidextrous controls •NO sights •Ambi QD sling mounts •Geissele carbine-length black aluminum KeyMod handguard •Nitride-treated barrel w/chrome-lined bore threaded muzzle & Vortex flash hider •Textured black SIG pistol grip •Includes SBX Pistol Stabilizing Brace* (PSB) & 30-round mag. •Barrel Length: 9.0″ •OAL: 26.5” •Wt.: 6.7 lbs. •NOTE: SBX Pistol Stabilizing Brace* (PSB) attachment NEITHER alters the firearm classification OR subjects firearm to NFA control as reviewed by the ATF