Tags: Weapon.
The 3-inch M1918 gun was a United States 3-inch anti-aircraft gun that entered service in 1918 and served until it was finally superseded by the 3 M3 gun in 1930. The M3 was subsequently replaced by the M1 90mm AA gun just prior to the opening of World War II. The M3 3 gun was later adapted for the anti-tank role serving as the main armament of the M10 tank destroyer during World War II.