Madsen Maskinpistol m/41

Dansk Industri Syndikat (Madsen) · Submachine Gun · Out Of Production · 1941

Also known as: Madsen-Suomi m/41, MP m/41, m/41 Suomi

Overview

The Madsen Maskinpistol m/41 was a Danish selective-fire submachine gun, a licensed copy of the Finnish Suomi KP/31 produced by Dansk Industri Syndikat (Madsen). Chambered in 9x19mm Parabellum and operating on a simple open-bolt blowback action, it fed from a 20-round detachable box magazine and was distinguished from the Finnish original by protective metal 'ears' flanking the front sight post. Only around 1,400 were built before the German occupation authorities halted production in August 1943.

Specifications

Weight (empty)4600 g (162.3 oz)
Overall Length870 mm (34.25")
Barrel Length314 mm (12.36")
Action TypeBlowback
Firing MechanismOpen Bolt
Trigger TypeSingle Stage
Magazine Capacity20 rounds
Magazine TypeDetachable Box
Muzzle Velocity396 m/s (1299 fps)
Muzzle Energy584 J (431 ft·lbf)
Effective Range200 m (219 yd)
Rate of Fire800 rpm
Barrel RiflingRight Hand
Frame MaterialSteel
Barrel MaterialSteel
Stock MaterialWood
FinishBlued

Calibers

Features

Service history

Operators

Conflicts

Production

Estimated total produced: 1,400 · Production years: 1941-1943

Production halted by German occupation authorities in August 1943

Origin

Country of origin: Denmark

Designer: Aimo Lahti

Discontinued: 1943

Notes

A domestically manufactured Danish variant of the Suomi KP/31 built under license from Finland. The 9x19mm chambering and 314 mm barrel gave it strong effective range for a submachine gun.

Background

The Danish m/41 was a home-built copy of Finland's famed Suomi KP/31, but its story was cut short: Denmark managed to complete only about 1,400 before the occupying Germans shut the Madsen line down in 1943.