Quote Originally Posted by clodhopper View Post
You guys aren't wrong, but you are missing the point. The magic milling box is marketed to guys who have no machining training/experience and don't want to, or don't have the time, to learn. The idea that you can mount a 80%, hit go and it is finished off without brain damage is highly sought by the masses who don't know how to work with their hands (or think with their brains).

As an aside, no diy 80% is ever going to be finished to mil specs. .005? with a drill press in an average garage? I would be surprised if the table is aligned with more than a square or a bubble level to the bit. But it doesn't need to be to work, and home built ghost guns don't need to be perfect, just work.
Sounds like an AK flat bending jig. Clamp, press, align, heat treat.