As the war developed, engineers found ways to simplifying the Thompson, and later M1 and M1A1 Thompson submachine guns were easier and less-expensive to produce. Watch our "American Rifleman ...

With the success of the MP40 from its Legends line, Umarex released the next logical product—the Legends M1A1. This faithful reproduction, clearly based on the famous Thompson submachine gun ...

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though they did not work with the early M1A1 version. The first model was built and ready for battle by 1921. A prototype belt-fed version of the Thompson submachine gun was worked on, but the ...