The Marine Corps Operator was developed in collaboration with the USMC as a duty-ready tactical 1911. Features a Picatinny accessory rail, integral night sights, G10 grips, and Armory Kote finish resistant to harsh environments. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 7 Year introduced: 2004, USA Weight: 42.5 oz Overall length: 8.625" Status: Active Military use: Yes Intended use: Tactical, Service, Military