The Glock 45 combines the compact G19 slide on the full-size G17 frame, creating a crossover format that offers full-size grip capacity and ergonomics with a shorter barrel. Introduced as a duty pistol concept, the G45 uses the Gen5 frame with front serrations standard — there is no non-FS version — and accepts all G17 magazines. The G45 predated the concept that Glock would later market as the "crossover" pistol. Type: Pistol Action: Striker-Fired Caliber: 9mm Capacity: 17 Year introduced: 2018, Austria Weight: 22.92 oz Overall length: 7.44" Status: Active Intended use: duty, carry