9x18mm Makarov Submachine Guns

The PP-19 Bizon is a Russian submachine gun developed in the 1990s at the Izhmash factory by a design team including Victor Kalashnikov, the son of Mikhail Kalashnikov. Its most distinctive feature is the underbarrel helical magazine with a capacity of 64 rounds of 9x18mm Makarov ammunition, giving it exceptional firepower in a compact package. The Bizon shares over 60% parts commonality with the AKS-74U, from which it was derived, including its receiver, stock, and trigger group. It uses a simple blowback operating mechanism and fires from a closed bolt, with semi-automatic and fully automatic firing modes. The helical magazine's compact profile avoids the awkward length of conventional high-capacity magazines, making the Bizon surprisingly maneuverable in tight spaces.

The PP-90 is a folding submachine gun developed by the KBP Instrument Design Bureau of Russia. It was designed as a concealed carry weapon for VIP protection and special operations. The weapon folds completely flat for storage and can be deployed rapidly by rotating the two halves apart. It was chambered in 9x18mm Makarov. The PP-90 is one of the most compact submachine guns ever produced.

The PM-84 Glauberyt is a Polish submachine gun designed at the OBRSM Tarnow facility. It was developed as a compact personal defense weapon for Polish military and law enforcement. The Glauberyt uses a simple blowback action chambered in 9x18mm Makarov with later variants in 9x19mm Parabellum. It features a folding stock and an integral foregrip for improved handling. The weapon is compact enough for concealment yet accurate enough for effective fire at close range. It was designed as a replacement for the earlier PM-63 RAK submachine gun.