Villar-Perosa aircraft submachine gun

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Villar-Perosa
Villar-Perosa M15.jpg
Type Submachine gun
Place of origin Italy Kingdom of Italy (1861–1946)
Service history
Used by See users
Wars World War I
Production history
Designed 1914
Specifications
Weight 6.5 kgs
Length 90 cm

Cartridge 9 mm Glisenti
Caliber 9 mm
Barrels 2 side by side
Action blowback
Rate of fire 3,000 round/min
Muzzle velocity 1,050 ft/s (320 m/s)[citation needed]
Effective firing range 1,800 m (2,200 yd)[citation needed]
Feed system Box Magazine

The Villar Perosa M15 was an Italian portable automatic firearm developed during the World War I by the Officini de Villar Perosa, originally to be used by the second crew member/observer of military aeroplanes. It is considered the first true submachine gun in the world.

The Villar Perosa was designed as a portable double barrel machine gun firing a 9mm round. In practice the machine gun consisted of two independent coupled weapons, each with its own barrel firing mechanism and separate 25 round magazine. As it was originally designed to be operated from airplanes it had a high rate of fire of over 1,500 rounds per minute. However, in practice the 9mm munition was not sufficiently powerful to shoot down aircraft which had become ever more resistant over the course of the war, and in addition the range was inadequate.

Instead the Villar Perosa began to be issued to ground troops. Between May and November 1916 a section was assigned to each infantry batallion of the Italian army and from May 1917 the number of sections was increased to 3 per batallion. The weapon was first used at the 12th Battle of Isonzo.

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