Sorry pal, but regardless what happens to new purchases, there won't be a round-up here.
The right to bear arms is a much bigger issue here than in Australia and the U.K.
The rights have been passed from generation to generation. It's in the foundation and the very fabric of this nation.
You're free to keep dreaming though.
Then why do you shit yourself every time there's a shooting like this?
Gun owners are in the minority. Gun nuts who think they needs them a Zombie-Apocalypse arsenal to fight the gummit are a true fringe.
You see, it used to be, the NRA supported common sense gun laws. When the Black Panthers started walking around with weapons in the 1960's, the NRA helped sensible Republican Governors like Ronald Reagan pass laws to stop that sort of nonsense.
That was before the nuts took over.