The Lightweight Operator pairs the rail-equipped MC Operator feature set with an aluminum alloy frame, reducing the overall weight to that of a carry pistol while maintaining the full-size 5-inch barrel. Type: Semi-Auto Pistol Action: Single-Action Caliber: .45 ACP Capacity: 7 Year introduced: 2006, USA Weight: 28 oz Overall length: 8.6" Status: Discontinued Intended use: Carry, Duty, Tactical