“You know as well as I that government rules are idiotic. Try that build without the “just purchased parts”.”
I guess I am trying to understand where you are coming from. The only conclusion I can come up with is that your view is that in order for a weapon to be homemade, you have to start with iron ore, is that right?
No, bar stock.
If you drill a few holes and mill out a couple of pockets in a milled casting you purchased while everything else comes completely finished from a factory, you are just assembling a factory build. You completed a kit. A "low effort" kit.