The Iconic American WW2 Thompson: the M1A1
The M1A1 Thompson represents a significant simplification of the iconic WW2 submachine gun, designed for mass production. Key changes include the removal of the Blish lock in favor of a straight blowback action and a fixed firing pin, reducing machining time and cost. External modifications like a fixed buttstock and simplified grip further streamlined production, making it a more efficient military firearm.









