The SOLGW 16 is Sons of Liberty Gun Works' standard-issue 16-inch 5.56mm carbine, built to exceed mil-spec with SOLGW's enhanced LPK, NOX muzzle device, and battle-proven Carpenter 158 steel bolt. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2014, USA Weight: 64 oz Overall length: 33" Status: Active Intended use: Tactical