Tags: Weapon.
The HS.404 was an autocannon produced by Hispano-Suiza and was widely used as both an aircraft and land based weapon in the 20th century by French British American and numerous other military services particularly during the Second World War. The cannon is also referred to as Birkigt type 404 after its designer Marc Birkigt. Firing a 20 mm caliber projectile it delivered a useful load of explosive from a relatively light weapon.