Fabrica Militar de Armas Portatiles

The FMK-3 is a submachine gun manufactured by Fabrica Militar de Armas Portatiles of Argentina. It was introduced in 1974 and was based on the design of the American M3 Grease Gun. The FMK-3 uses a blowback action with a telescoping bolt that reduces the overall length of the weapon. The receiver is made from stamped steel with a synthetic stock and a forward vertical grip. It is chambered in 9x19mm Parabellum and feeds from a 40-round magazine. The FMK-3 was designed as a compact, close-quarters weapon for military and police use. It was adopted by the Argentine armed forces and security forces.