The PP-19 Bizon is a Russian submachine gun notable for its helical magazine mounted under the barrel, offering a very high 64-round capacity. Developed by the Izhmash design team partly responsible for the AK-74, it was intended for Russian police and interior ministry forces requiring high firepower in a compact package. Multiple caliber variants exist. Type: Submachine Gun Action: Semi-Automatic/Full-Auto Caliber: 9mm Parabellum Capacity: 64 Year introduced: 1996, Russia Weight: 46.6 oz Overall length: 26.4" Status: Active Intended use: Law Enforcement, Military Police