Glock 17 Gen3 MOS with factory Modular Optic System cut milled into the slide. A factory optic-ready version of the most common law enforcement Glock generation. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2016, Austria Weight: 24.69 oz Overall length: 7.32" Status: Discontinued Military use: Yes Intended use: Service, Duty, Competition