Original Item: Only One Available. This is a lovely inert example of a 90mm Gun Round. This example is completely void of any explosive content nor is it able to be used as an explosive device. The round is in compliance with the current BATF standards on inert ordnance.

Not Available For Export

The 90 mm gun M1/M2/M3 was an American heavy anti-aircraft and anti-tank gun, playing a role similar to the German 8.8cm Flak 18. It had a 3.5 in (90 mm) diameter bore, and a 50 caliber barrel, giving it a length of 15 ft (4.6 m). It was capable of firing a 3.5 in × 23.6 in (90 mm × 600 mm) shell 62,474 ft (19,042 m) horizontally, or a maximum altitude of 43,500 ft (13,300 m).

The 90 mm gun was the US Army's primary heavy anti-aircraft gun from just prior to the opening of World War II into 1946, complemented by small numbers of the much larger 120 mm M1 gun. Both were widely deployed in the United States postwar as the Cold War presented a perceived threat from Soviet bombers. The anti-aircraft guns were phased out in the middle 1950s as their role was taken over by surface-to-air missiles such as the MIM-3 Nike Ajax.

As a tank gun it was the main weapon of the M36 tank destroyer and M26 Pershing tank, as well as a number of post-war tanks like the M56 Scorpion. It was also briefly deployed 1943–1946 as a coast defense weapon with the United States Army Coast Artillery Corps. Each gun cost roughly $50,000 to make in 1940 and utilized up to 30 separate contractors to manufacture.

The bottom of the brass casing is stamped:

90MM M19
LOT 6268-16-F.A. 1941

The projectile is crimped onto the shell casing and is not currently removable. The driving band is now gone, and the projectile itself still retains some markings:

90G
SHOT, AP-T, M77

M77 is the projectile used and is an obsolescent armor piercing model currently used for training purposes in 90mm guns. The projectile is a hardened steel monobloc slug and has no windshield.

A nice but very worn and dented example, ready for display.