lol, you think thats enough to keep them from being taken away?
heres what will happen with that guys guns.
those serial numbers will still be registered to the last guy that owned them.
or if they arent technically registered to him still, then he was the last point on the radar.
they will go to him to get the guns.
he will state that he sold them, then show them his proof (if he has any) and just send them to your buddy.
then, since there will be a law about owning guns, this will be enough for them to get a warrant.
then bust his door in, and rip apart his house and car. and he will be arrested for multiple felonies.
there's always a trail.