All rifles and guns are not the same. Assault rifles and automatic pistols should be recategorized as WMD (or some other appropriate term) to distinguish them from single shot rifles, shotguns, and pistols used for hunting and personal defense.
Manufacturing, owning, or having WMDs or WMD ammunition in your possession should result in severe criminal penalties (more than an ounce of pot). There should be mandatory prison sentences for anyone involved with WMD.
We should treat these WMD like nuclear weapons. They should all be destroyed.
My two cents.