
Originally Posted by
sweersa
Yes, absolutely. As gulfstategaurd said, the "full auto" characteristics must be addressed before the metal pieces are made into a receiver.
What was once legally a machine gun (stripped receiver) is now rendered scrap the moment it is cut in half (or better) and rendered useless as a receiver. (All ATF opinions aside, and they are just that, opinions, not law, they would like you to torch cut in x amount of spots displacing x amount of material, they don't write the laws, but they pretend to)
So if one were to plastic weld a G36 receiver into something useful again from pieces, the rear end must have material added to prevent insertion of an auto bolt carrier, thus making it a semi auto receiver. For an AK, it must have the safety (auto) sear holes welded up before being a receiver again, etc. Different weapon designs require different actions. Best way to do it is make it to the same specifications of existing semi auto examples, if available.
Very nice finds, OP.