Original Item: Imported more than 10 years ago, these are Original US GI issue Thompson Sub Machine Gun Receivers that were de-milled prior to importation. Each has been vertically flame cut into three pieces with the "nose" (the very front, with the barrel threads in it, missing).
These "noses" were left on the barrels when originally transformed to parts sets and many parts sets offered today still have them in place. Good to Very Good condition may show small amounts of non-corrosive surface rust. M1A1