The Glock 17 Gen4 was adopted by the Australian Defence Force as the EF88 companion sidearm. Features the Gen4 dual recoil spring, reversible magazine release, and interchangeable backstraps for diverse user populations. Type: Semi-Auto Pistol Action: Striker-Fired Caliber: 9mm Capacity: 17 Year introduced: 2013, Austria/USA Weight: 22 oz Overall length: 7.4" Status: Active Military use: Yes Intended use: Military, Duty, Law Enforcement