Thompson

The M1/M1A1 Thompson were versions of the M1928A1 Thompson Sub-Machine Gun that were streamlined and simplified for manufacture during World War 2. Features include a non-finned barrel, simple fixed "L" style sights, no Cutts Compensators, and elimination of the knurling on actuators and fire select levers in later models. The bolt actuator was also moved from the top to the right side of the receiver, with some models having the actuator on either left or right side. Also there are examples that were parkerized rather than blued that ended up in the hands of U.S. Soldiers. Basically the M1A1 is the same as the M1 but with a few more improvements such as the noted rear sight guard.

Battlefield 1943
In Battlefield 1943 the Thompson Submachine Gun is used by the United States Marine Corp in the "Infantry" class. It it superior to it's Japanese counterpart, the Type 100, In many ways.

Battlefield: Bad Company 2
The M1A1 Submachine Gun is featured in the Battlefield: Bad Company 2 Limited Edition.