I have a model 50 receiver that has a threaded extension on which the stock is bolted. There is a tube which screws on. I had to have it heated to remove because many years ago some type of glue or locktite was used. It's hard to see as not much is on the threads but enough that it won't allow me to screw the tube back on. Any ideas on how to get the threads clean? Thanks.
Mike Pracht.
Mike Pracht.