The Polsten was designed to be simpler and much cheaper to build than the Oerlikon, without reducing effectiveness.

The simpler design of the Polsten cannon made its production much cheaper.

It was used by the anti-aircraft platoons of some British infantry battalions during the Western European campaign of 1944-45.

It equipped airborne units in the anti-aircraft role, and was employed in Operation Market Garden.

Polsten Guns, magazines and ammunition boxes were also made in Australia by Holden's Woodville and Beverley plants during World War II.