The MC Operator is Springfield's duty-ready 1911 with a full Picatinny rail, G10 grip panels, and an extended magazine well. Built around the military combat concept of the original TRP Tactical but at a more accessible price point. Type: Semi-Auto Pistol Action: Single-Action Caliber: .45 ACP Capacity: 7 Year introduced: 2004, USA Weight: 40 oz Overall length: 8.6" Status: Active Intended use: Duty, Tactical