The M18 is the compact variant of the M17, adopted by all US military branches as the general officer and aircrew sidearm. Shares the same removable FCU as the M17 and accepts the same magazines. Type: Semi-Auto Pistol Action: Striker-Fired Caliber: 9mm Capacity: 17 Year introduced: 2017, USA Weight: 28.1 oz Overall length: 7.2" Status: Active Military use: Yes Intended use: Military, Duty