Originally Posted by Bob Wright
Was it an M1928, or the M1?
I do remember advertising of the day saying Thompsons could be had in .38 Super, but never saw anything for the .30 Carbine round. Any documentation?
Thompson .30 Carbine
The layout and ergonomics of the Thompson submachine gun was also considered for the role of a Light Rifle before the adoption of the M1 Carbine. This platform was based on the M1921/27 variants and worked well but due to the war effort was found expensive for mass production and defied the concept of a Light Rifle. However it did form the basis of the Thompson Light Rifle, a development of this variant with a barrel shroud which housed a quick barrel change device similar to the MG42 but was refused in favor of the aforementioned M1 Carbine.