The KGP-9 is a Hungarian submachine gun used by Hungary's military forces and prison guards. It operates using a basic blowback mechanism, and fires the very popular 9mm Parabellum cartridge from a closed bolt.
As a Hungarian submachine gun utilized by Hungary's military and prison forces, the KGP-9 employs a basic blowback system to discharge the widely used 9mm Parabellum round while keeping it in a closed position.