Though chambered in the standard 9x19mm caliber, the PP-2000 is designed to use Russian overpressure rounds at high velocity to penetrate body armor. The high muzzle velocity of the PP-2000 gives it a flatter trajectory than other 9mm weapons, and its compact size make it ideal as a Personal Defense Weapon. When equipped with the 40 round extended magazine the PP-2000 also functions admirably in a CQB assault role.