just build an 80% weapon ya numbskull. You can order a polymer AR-15 lower receiver, and then finish it with basic tools like a drill and stuff. Then you go online or a gun shop or something and you order yourself an AR-15 upper receiver and the rest of the parts, which are not currently restricted.
just because the state wants to disarm you doesn't mean you should comply. if you go with an 80% lower you don't get put on a list or anything because you never bought a firearm. if you're smart/lucky maybe you can pay for everything and have it shipped without even having it traced back to you.
or you can even 3d print a nylon lower. but don't take my advice, I'm in CA and nogunz as well. so what the hell do I know.
I am working on 3d printing a glock frame. I have a cheap printer but I've already printed a half scale glock frame and it seems alright so far. I printed it in PLA. it won't stand up to heat if you leave it in a car but it will shoot. you can then buy parts on ebay. once you have the frame you need a slide and upper/lower parts kits plus the barrel. you do need to use a file or dremel or something to file down some aluminum which would be a bit of work.
if that works out I may print a new frame in nylon or zytel which will hold up much better.
maybe I won't follow through with my plan and just get scared out of it. but it's certainly a plan. the thing is, if I order the parts online, even with a card not linked to me, the address still will. you need to show ID to open up a PO box, too.
as I was typing this post I realized I might, or might not, be able to go to a firearms dealer and have parts ordered to them, and pay with cash, so I'm not even part of the whole trail. not sure if a dealer would be willing to do that but I think it might be legal. the only part that's regulated is the lower receiver from what I understand.
look up some things on your own. I don't really know that much.