Semi-automatic civilian version of the CQBR MK18 used by U.S. SOCOM, with 10.3-inch barrel and Daniel Defense's RIS II rail system. Type: Pistol Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2012, USA Weight: 62.4 oz Overall length: 24" Status: Active Military use: Yes Intended use: Tactical, PDW