The HK P7 M13 is the 13-round magazine variant of HK's unique squeeze-cocker pistol, the most mechanically sophisticated production handgun of the 20th century. The squeeze-cocker trigger requires the user to grip the frontstrap firmly to cock the internal striker — releasing the grip instantly decocks. The gas-delayed blowback action and fixed barrel provide outstanding inherent accuracy. The M13 extended the single-stack P7 to a double-stack magazine without changing the bore axis. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 13 Year introduced: 1982, Germany Weight: 28.2 oz Overall length: 6.73" Status: Discontinued Intended use: law_enforcement, collector