They can apply for the privilege of having a gun. Just like the rest of the world.

An automobile is hundred times more essential than a hunting rifle for most Americans, yet America has no problem making driving a privilege. Somehow nobody's worried about evil government confiscating everyone's vehicles so that they will be forced to march on foot...

Yes. Here en Denmark hunters can own rifles etc. But you need a hunting permit, that requires training in gun handling, safety, shooting etc. It also consists of an actual test. You need to keep the rifle safely stored, I believe it needs to be locked away, with the firing pin, kept in a different place, away from the rifle.