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.
Then what you’ll see is a huge black market in arms and ammo. It’ll be just like dope smuggling, only larger. But it wouldn’t last long. There’s simply too many gun owners, Dems as well as Republicans, who won’t put up with pols who try something like that. Only pols in blue states MIGHT!! be safe. There definitely would be some kind of civil war. And the military will not be on the side of the leftists.