KP44 Receiver Flat


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This flat is laser cut and includes a partially precut ejector slot, front magwell tabs and correct shape. Material is 14 ga (.075) A569 hot roll steel. In addition to forming, the ejector slot is cut out and the front magwell tabs are bent in to complete the bare shell. The original KP-44 design features a (semi) removable barrel with rivets and pin.

NO FFL or paperwork is required.





Starting in 1942, and becoming more common as the Finnish-Soviet Continuation War progressed, both PPS-42 and PPS-43 began showing up among Soviet units, and many were captured by the Finnish Army. The simple construction of these weapons immediately caught the interest of the Finnish arms industry. It was decided that they would try to copy the sheet-steel stamped construction process, but redesigned to use the 9×19mm Parabellum round instead of the original Soviet 7.62×25mm Tokarev and to use the magazine of the Suomi KP/-31 submachine gun, the standard SMG in Finnish service at that time. The new submachine gun was a much cheaper design than the Suomi submachine gun and could be manufactured much faster. All parts were made out of stamped steel (excluding the barrel, bolt and the wood hand grips). The weight of the gun was almost halved compared to the Suomi (2.95 kg vs. 5 kg).

The Finnish Defence Forces ordered 20 000 m/44 submachine guns from Tikkakoski in August 1944. The end of the war saw the order reduced to 10 000 units and the guns were produced during 1945. It is unlikely the m/44 actually saw action during WWII but the gun was used by the Finnish Defence Forces as a training weapon until the 1970s. The Finnish Border Guard and United Nations troops also used the weapon, the latter particularly during the Suez Crisis.


Technical Information



Place of origin Finland
In service 1945–1970’s
Used by See Users
Production history
Designed 1944
Manufacturer Tikkakoski
Produced 1945 (Finland)
Mass 2.95 kg (6.5 lb)
Length 830 mm (32.7 in) stock extended / 620 mm (24.4 in) stock folded
Barrel length 250 mm (9.8 in)
Cartridge 9×19mm Parabellum
Action Blowback, open bolt
Rate of fire 650 rounds/min
Muzzle velocity Approx. 400 m/s (1,312 ft/s)
Effective firing range 200 m
Feed system 20, 50, and 36-round detachable box magazines, 40 and 71-round drum magazines
Sights Flip rear sight, fixed blade front sight


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