The Bofors 40 mmAutomaticGunL/60 (often referred to simply as the "Bofors 40 mmgun", the "Boforsgun" and the like, see name) is an anti-aircraft autocannon
development in the field. 25 mmautomatic air defense gun M1940 (72-K) Bofors 25 mm M/32 25 mm variant of the Bofors 40 mmgun Johnson, Melvin M. Jr. (1944)