Does anyone have a preferred source for AR lower forgings, not 80%, but raw forgings? What are some good sources for small parts? Has anybody here machined a lower from scratch? I'm a tool and diemaker and former aircraft/aerospace machinist witjh some machine tools in my garage (Brigeport, lathe, surface grinder) so I have no qualms about attempting this. I just thought someone who has done it might have some pointers. Also, I might have difficulty getting the tap to cut the buffer tube threads. I could set it up and single point the threads on a lathe but that would be a fair amount of work.