General Motors (Guide Lamp Division), Ithaca Gun Company

Browse General Motors (Guide Lamp Division), Ithaca Gun Company firearm specifications, calibers and production history.

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M3 Grease Gun
DISCONTINUED

M3 Grease Gun

SMG.45 ACP

The M3 is a .45 ACP submachine gun developed by the United States during World War II as a cheaper, faster-to-produce alternative to the Thompson submachine gun. Its distinctive appearance earned it the nickname 'Grease Gun.'

General Motors (Guide Lamp Division), Ithaca Gun Company
United States
1942-1945