Vektor GA-1

The Denel Vektor GA-1 is an automatic cannon based on the German WWII MG 151/20 automatic cannon. Compared to other rapid-fire 20 mm autocannons, it is lightweight and has low recoil due to its design and the use of the 20×82mm cartridge. The weapon was intended for use in vehicles, naval vessels, and helicopters.^[1] One gun was fitted to the Atlas XH-1 Alpha attack helicopter demonstrator.

Vektor GA-1
GA-1 in Indonesian navy service
Type	Autocannon
Place of origin	South Africa
Service history
Used by	South African National Defence Force Indonesian Navy
Production history
Manufacturer	Denel
Specifications
Mass	39 kilograms (86 lb)
Length	1.77 metres (5 ft 10 in)
Height	195 millimetres (7.7 in)
Caliber	20×82mm
Rate of fire	750 rds/min