Speaking of receivers, this is kind of a deal.
http://centerfiresystems.com/rifle-vz58hc-fold.aspx
This is fully $100 below the cost of a crappy Romanian stamped sheet metal AK and this VZ is a milled receiver.
Milled brother. I would charge you $200 to make the receiver.
Booked, Thanks!
Or you might want a lower with a Texas flag.
http://www.texasguntalk.com/forums/runner-runner-guns/54390-texas-lower.html
From here.
https://www.runnerrunnerguns.com/
Dang. That would just be tooo easy. Who needs a 3D printer?