Automatic cannons have to meet the criteria of performance, reliability, and service life. Oerlikon Contraves is a world-renowned manufacturer of automatic cannons in calibers ranging from 20 mm to 35 mm. These cannons can be employed in the areas of field gunnery, naval gunnery, vehicle armament, and aircraft armament.

The Oerlikon Contraves product line includes gas-operated cannons, recoil-operated cannons, and revolver cannons with single or dual ammunition feed.