01-03-2014, 09:04 PM
LRRPF I would buy the book if you get it published. I got the lapping tool sqare the face. That worked well. In most of the uppers I have put together the extension does not fit in the tunnel as tight as I would like. I was thinking that a coating would be a good to tighten the fit. How thick can you build up the tunnel? Is there something else you can do? Dont laugh maybe a a layer of aluminum foil? I do not like the idea a blue locktite.