Thompson SMG in 30 Carbine
This video details an experimental Thompson SMG chambered in .30 Carbine, a prototype submitted for the M1 Carbine trials. Despite resembling a Model 1928, its .30 Carbine chambering and longer magazine set it apart. The design aimed for minimal retooling but failed military requirements due to excessive weight (10-12 lbs unloaded), more than double the target. This specific unit, serial number 1, showcases standard Thompson controls and a proprietary magazine.









