The Swedish Suomi M-37/39 Submachine Gun
This video delves into the Swedish Suomi M-37/39 submachine gun, a licensed derivative of the Finnish Suomi KP/-31. Initially chambered in 9x20mm Browning Long to match the Swedish service pistol, later versions, designated M-37/39, were adapted to the more modern 9mm Parabellum cartridge. The description highlights key differences from the original Suomi, including variations in barrel length, charging handle design, and stock profile, while noting the shared core mechanism and the distinctive rearward-sloping quad-stack magazine designed to prevent rimlock.










