Peter,

I hope I understand your question; with the work I've done here, I will not need to turn out a Rear Head Casing as it is attached to the Trigger Mechanism Housing. I merely need to clean up the inside diameter a bit to accept the receiver tube. The receiver tube that I have in the mail, once properly milled, will fit nicely into the rear in the Head Casing and will lie on the two tabs. I need to clean the excess welded metal from the tabs and return them to their original thickness. As far as i understand I merely need to spot weld the tube onto the tabs and the rear head casing.

Indianapolis Ordnance has the 7 3/4" barrels, newly machined from 4130 steel to the original specifications. I will have to wait for my ATF approval before I can receive the barrel in my possession, as the ATF would consider possession of the components and a short barrel as intent to manufacture an NFA weapon without approval. Despite this warning everywhere, the ATF agent i contacted in my district said he did not care as long as my paperwork was submitted..Hmmmm