The PP-19 Bizon, also known as just the Bizon, is a straight blowback closed bolt submachine gun developed in 1993 by Victor Kalashnikov that fires the 9x18mm Makarov or 9x19 Parabellum round. It features a 64 round helical magazine attached to the underside of the weapon. The PP-19 Bizon directly lead to the eventual design of the 9×19VSN submachine gun.
The Bizon is a cut weapon from Tom Clancy's Rainbow Six: Lockdown. In the PC version of the game, the Bizon is only present within the game files.