The UMP40 is the .40 S&W variant of the UMP. Of the three UMP calibers, the .40 S&W version saw the least adoption and has been largely discontinued as the .40 S&W cartridge fell out of favor with law enforcement. Type: Submachine Gun Action: Semi/Full-Auto Caliber: .40 S&W Capacity: 30 Year introduced: 1999, Germany Weight: 76.8 oz Overall length: 17.7" Status: Discontinued Intended use: law_enforcement