The KP m/44, also known as the Suomi KP/-44, is a submachine gun that was developed in Finland during World War II. The KP-44 was designed to replace the aging Suomi KP/-31 submachine gun, which had been in use by the Finnish military since the 1930s.

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The development of the KP-44 began in 1942, during the Continuation War between Finland and the Soviet Union. It was also used by Finnish troops during the Lapland War, which was fought against German forces in northern Finland in 1944-1945. The KP-44 was designed by Aimo Lahti, who was also responsible for designing the Suomi KP/-31. The KP-44 sheet steel stamped construction was inspired by the Soviet PPS submachine gun, which had been captured by the Finnish military during the war. 

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The Tikkakoski factory stamp for this firearm is located on the aft side of the receiver along with the serial number. Also this weapon will bear the “SA” mark, which is the mark of the swedish army or the Suomen Armeija.” Also located on the aft side of the receiver.

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The KP-44 is chambered for the 9x19mm parabellum cartridge. The KP-44 features a simple blowback action, a box magazine that can hold up to 36 rounds of ammunition, a folding stock and wooden foregrip. The KP-44 is also equipped with a muzzle brake and a barrel shroud that can be used to cool the barrel during sustained fire. All the parts except the barrel, bolt, and wood hand grips are made out of stamped steel. This made the gun remarkably easy to manufacture and also almost halved the weight of its predecessor, the Suomi KP/31.