So, if having a shotgun is legal in your state, but the Federal Gov't decides that no one should own one; the police should be able to come to your home and collect your weapons?
I guess I'm in the minority; I'm a States Right backer.
I’m not necessarily saying that they have the right,
only that this is what Federal Law says.
See 21 U.S.C. §§ 812; 813; 802(34) and (35)
The supremacy clause of the Constitution would seem to give them cover.