Interesting read. Yet it's something most of us here already new, so "not news". The tone of the article is "we need to fix this". And by "this" I believe the author means "people getting out of prosecutions because this hunk of metal is not actually a 'gun'". Yet I read it and can understand how lawyers might approach this to get a client off and at the same time wonder "How on earth are they going to royally screw this up?"
My guess: something stupid, like manufacturers won't be able to produce a lower any longer. They MUST be immediately welded to an upper, making it a "gun". A stripped lower will become Kryptonite, along the lines of the parts that can make an AR full auto (sear? more than that? I really don't know? Guess I need better education.)
Seems simple enough, prohibited persons can not possess firearms or their component parts. I'm certain they'll screw it up way worse than that if only to prescribe additional restrictions on firearms in general.
It's complicated. In my mind, a stripped receiver is only about 30% of the firearm. It can't fire a round without the other 70% of the parts. A receiver without a barrel, is not a firearm. What they are wanting is to require both the upper and lower to be serial numbered and for either one on it's own to be considered a firearm.
Lawyers being lawyers. For the rest of us it is quite simple English:
d)It shall be unlawful for any person to sell or otherwise dispose of any firearm or ammunition to any person knowing or having reasonable cause to believe that such person-
(1) is under indictment for, or has been convicted in any court of, a crime punishable by imprisonment for a term exceeding one year;
"firearm" is define as:
(3) The term “firearm” means (A) any weapon (including a starter gun) which will or is designed to or may readily be converted to expel a projectile by the action of an explosive; (B) the frame or receiver of any such weapon; (C) any firearm muffler or firearm silencer; or (D) any destructive device. Such term does not include an antique firearm.
So since felons cannot have firearms, and firearms include frames or receivers, I do not see what the issue is.
The issue is B, what's the receiver or frame of a firearm: the hunk of metal that contains the trigger, bolt, firing pin, and has the barrel attached to it so therefore it's only by mutual agreement that the lower of a AR is considered the serialized firearm.
In many countries in Europe for instance Germany, the upper receiver of an AR is considered the serialized firearm and everything else is accessories anyone can buy.