Suomi KP/-31

Suomi KP/-31 - 9x19mm

Husqvarna m/37-39 (Swedish variant of the Suomi KP/-31) with 50-round box magazine - 9x19mm

The Suomi KP/-31 (aka Suomi M/31), commonly known as Suomi submachine gun (Suomi konepistooli) in Finland, was a sub-machine gun based on the early Bergmann MP18 design. First designed in 1922, by Aimo J. Lahti, the gun was revealed to public in 1925. The Suomi (which means Finland) KP/-31 was in service in the Finnish Armed Forces from 1931 to the 1960's, and was also deployed in large numbers by other military forces during the Second World War. Some special versions stayed in service through the 1980s.

While somewhat similar in appearance and shape to the Soviet PPD-40 and PPSh-41, the KP/-31 is not functionally related to the two (The KP/-31 has a straight blowback action, while the PPD and PPSh-41 rely on an open-bolt system.) However, Soviet experiences against the KP/-31's 71 round drum magazine during the Winter War did inspire the drum mags that would later be used on their own PPD-40s and PPSh-41s; this is the only significant relation between the designs.

Specifications

(1922 – 1968)

• Type: Submachine Gun

• Caliber: 9x19mm

• Weight: 10.1 lbs (4.6 kg)

• Length: 34.3 in (87 cm)

• Barrel length: 12.4 in (31.4 cm)

• Capacity: 20, 36, 50-round box magazine, 40 or 71-round drum magazine

• Fire Modes: Semi-Auto/Full-Auto

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Film

Title	Actor	Character	Note	Date
In the Rear of the Enemy (V tylu vraga)		Finnish soldiers		1941
The Girl from Leningrad (Frontovye podrugi)		Finnish soldiers		1941
The Murderers are Coming (Ubiytsy vykhodyat na dorogu)	Oleg Zhakov	The Nazi German Captain		1942
	Viktor Kulakov	Nazi German soldier
	Aleksandr Antonov	Müller
	Aleksandra Danilova	Female partisan
	Uncredited	Pet'ka
Lad from Our Town (Paren iz Nashego Goroda)	Valeriy Medvedev	Pet'ka Volzhanin		1942
Antosha Rybkin		Red Army soldiers		1942
We Will Come Back (Sekretar raykoma)	Boris Poslavsky	Semyon Rotman		1942
	Mikhail Kuznetsov	Sasha Rusov
	Aleksandr Antonov	Potapenko
		Soviet partisans
Elusive Jan (Neulovimyy Yan)	Evgeniy Samoylov	Jan Smudek		1942
Invincible (Nepobedimye)	Aleksandr Khvylya	Dmitri Pronin		1943
	Boris Blinov	Bondaretz
In the Name of the Fatherland (Vo imya Rodiny)		Soviet soldiers		1943
The Turning Point (Velikiy perelom)	Vladimir Maryev	Lt. Fyodorov		1945
	Pavel Volkov	Yefreytor Stepan
The Unknown Soldier (1955)	Reino Tolvanen	Cpl. Rokka		1955
	Finnish soldiers
Reptilicus	Carl Ottosen	Gen. Mark Grayson	Husqvarna m/37-39	1961
		Danish soldiers
The Olsen Gang in a Fix		Mozerella's trenchcoat thugs	Husqvarna m/37-39	1969
	Peter Steen	Inspector Mortensen
Cuba		Cuban guerillas	With stick magazines	1979
The Winter War		Finnish troops		1989
Ambush (Rukajärven tie)		Finnish troops		1999
The Cuckoo		Finnish officer		2002
Tali-Ihantala 1944		Finnish troops		2007
Max Manus: Man of War	Aksel Hennie	Max Manus		2008
Flame and Citron	Mads Mikkelsen	Jørgen 'Citron' Haagen Schmith	Husqvarna m/37-39	2008
	Danish nazis and resistance fighters
Land of Mine		Danish soldier	with stick magazine	2015
The Unknown Soldier (2017)	Eero Aho	Corporal Rokka		2017
	Eemeli Louhimies	Private Asumaniemi
		Finnish soldiers

Television

Show Title / Episode	Actor	Character	Note	Air Date
The War Game	.	East German soldier	.	1965

Video Games

Game Title	Mod	Note	Date
Forgotten Hope	.	.	2003
Forgotten Hope 2	.	.	2005
FinnWars			2006
Deadfall Adventures	.	.	2013

Anime

Title	Character	Note	Date
Lupin III: The Castle of Cagliostro	Count Cagliostro's hencheman		1979