A .40 S&W variant of the MP5 developed during the 1990s law enforcement shift to .40 caliber, sharing the roller-delayed operating system with the 9mm family. Type: Rifle Action: Semi-Automatic Caliber: .40 S&W Capacity: 30 Year introduced: 1994, Germany Weight: 82 oz Overall length: 27" Status: Discontinued Intended use: Law Enforcement