What kind of guns are not allowed in America?

The United States is not allowed to have "automatic" weapons, but semi-automatic rifles. The American Constitution allows American citizens to own guns, and the United States has the largest number of guns in the world. However, all States in the United States have restricted the types of guns that can be held. Except for the fully automatic guns mentioned above, these guns are not allowed to be held, including rifles, shotguns, gun silencers, destructive devices and so on.

The picture shows AKM and AR civil rifles.