If bump fire stocks are banned, and there's no Grandfathering in, if someone wants full auto, they might as well make an actual full auto. There are always unintended consequences.
Of course, if you're hell bent on taking over a hotel room and shooting at fish in a barrel, that federally sponsored holiday isn't relevant. Not like you'll be alive for the vacation.
You're right, you can't. What you can do is arrange it so if you're caught with one you get a federally sponsored holiday and loss of the right to even be in the same room as any gun, let alone own one.
Plenty of info out there for converting semis to full auto...........
Of course, if you're hell bent on taking over a hotel room and shooting at fish in a barrel, that federally sponsored holiday isn't relevant. Not like you'll be alive for the vacation.