The P11 is a specialized underwater pistol developed for combat diver and frogman use, firing electrically-initiated dart cartridges stored in sealed barrel clusters. Each of the five barrels is pre-loaded at the factory and the entire barrel assembly must be returned to HK for reloading after use. Issued to German Navy divers and several allied special operations units. Type: Semi-Auto Pistol Action: Gas-Operated Caliber: 7.62x36mm Capacity: 5 Year introduced: 1976, Germany Weight: 2.5 oz Overall length: 7.87" Status: Active Military use: Yes Intended use: Special Operations, Underwater, Military Use