I sincerely doubt that any kind of national confiscation of guns will take place. How are they going to do it? What police or armed authorities are going to go door to door demanding citizens give up their guns? Ain’t going to happen.
Just like coal: regulate the industry into oblivion.
Drag feet on mandated bureaucratic paperwork.
Refuse to accept applications.
Institute impossible standards with severe penalties.
Tie businesses up in court. Winning is irrelevant, just drag it out until the opponent gives up.
The firearms industry is small. Won’t be hard to strangle it.
Sure you can keep your guns and ammo. You might not even have to register them. You just won’t be able to get any more.
The goal: cut the supply lines.