Even THAT won't do the job. The "black market" in firearms will ALWAYS exist. If gun ownership is totally prohibited to law-abiding US citizens, criminals (and terrorists) will still have them--the necessary guns will be stolen from army bases, smuggled in along with bales of marijuana, or MADE FROM SCRATCH.
Of course there are two things that will happen when this occurs. 1) Constitutional Reset via 2nd Amend. and 2) people will import machineguns and RPG's .... there's no incentive not to have the most powerful weapons versus a simple pistol or something.
I guess I didnt put the sarcasm tag on my lines. Dont worry I completely believe in the 2nd. Amend. and the RKBA.
I still cant figure out how the govt can put CONTROL on something that SHALL NOT BE INFRINGED upon.
speaking as a machinist: you ain't wrong.