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Thompson submachine gun

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noun Thomp·son submachine gun \ˈtäm(p)-sən-\

Definition of Thompson submachine gun

  1. :  a .45 caliber submachine gun with a drum or stick magazine, a pistol grip, and a detachable buttstock



Origin and Etymology of thompson submachine gun

John T. Thompson †1940 American army officer


First Known Use: 1920


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