What individual has the means to build a frame from scratch. Is that what you meant, OP, to forge your own frame? Ya, good luck with that. I would think the Guv would frown on that just like 3D printing a frame.
Yes it's legal, till you build it into a gun. If it were that easy to build an unregistered gun, all the cool kids would be doing it. But, like an AR 80% lower, they aren't legally a firearm until you drill out the fire control group section, basically a $200 paper weight.



























