Becker Type M2 20 mm cannon

Becker Type M2
An artist's rendering of a Becker antiaircraft gun
TypeAutocannon
Place of originGerman Empire
Service history
In serviceImperial German Air Service
WarsWorld War I
Production history
DesignerReinhold Becker
August Coenders
Designed1913
ManufacturerStahlwerke Becker
No. built539+
Variants
Specifications
Mass30 kg (66 lb)

Cartridge20x70mmRB (130 g)
Caliber20 mm (0.787 in)
Barrels1
ActionAPI blowback
Rate of fire325 rpm
Muzzle velocity490 m/s (1,600 ft/s)
Feed system15-rounds box magazine

The Becker Type M2 20 mm cannon was a German autocannon developed for aircraft use during World War I by Stahlwerke Becker. It was first mass-produced in 1916 and was installed in a variety of aircraft. It was the only German autocannon to see service in the air during the war.

The Becker also served as the pattern for the famous Swiss-built Oerlikon 20 mm cannon, which is in service to this day, and in a later form, was the original inspiration, through the Swiss design after World War I, for the World War II German Luftwaffe's MG FF (Maschinengewehr Flügel Fest, "fixed wing-mount automatic ordnance") 20 mm autocannon design.