Indeed, no other fighting force in the world went to war quite like the Americans and their deadly, short-ranged shotguns. In fact, the German Army of World War 1 directly threatened any American infantry shotgun user with immediate execution should they be captured alive. Additional wartime service covered the Korean War (1950-1953) and the Vietnam War (1955-1975).
Design of the M520 was attributed to John Moses Browning and later refined in the Stevens M620 pump-action shotgun of 1927 (detailed elsewhere on this site).
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