The 9mm Commander packages the compact 4.25-inch barrel length of the original Commander with the softer-shooting 9mm cartridge, making it a popular duty and carry option for those who prefer the 1911 ergonomics. Type: Semi-Auto Pistol Action: Single-Action Caliber: 9mm Capacity: 9 Year introduced: 1991, USA Weight: 33 oz Overall length: 7.75" Status: Active Intended use: Duty, Carry