Traditional double-action Third-Generation .45 ACP with 8-round single-stack magazine — law enforcement variant of the 4506 with decocker-only controls. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 8 Year introduced: 1991, USA Weight: 38.5 oz Overall length: 7.8" Status: Discontinued Intended use: Duty