The PP-2000 is a submachine gun chambered for the 9x19 Parabellum, 9x19 7N21, AND 9x19 7N31. The weapon is currently manufactured by KBP Instrument Design Bureau and is being used by the top law-enforcement agencies in Russia. The submachine gun is blowback-operated and is fed from a 20 or 44 round magazine. It was primarily designed for police and riot control forces, but is now available to global armed forces. The PP-2000 is sturdy enough to handle the 7N21 and 7N31 rounds, which are armor piercing.