Fourth generation full-size .45 ACP Glock with factory MOS optic cut — the first optics-ready .45 ACP Glock. Type: Pistol Action: Semi-Auto Caliber: .45 ACP Capacity: 13 Year introduced: 2014, Austria Weight: 26.28 oz Overall length: 7.59" Status: Discontinued Intended use: Competition, Duty, Home Defense