Fluted 1928 Thompson Barrel - No thread

grabcad

This is a 1928 Thompson barrel made to the spec from the original tdp dated Dec 31, 1941. This model lacks the threads on the chamber as you would match them with whichever threads you had used on your receiver. Most new production receivers do not use the original thread as specified in the tdp. I have included a picture of the chamber thread from the tdp if you wish to complete this model to spec.