After reading some posts here I was standing at the urinal where I do my best thinking and wondered about items that had not been registered before. During my years I have come across people who have silencers, full auto rifles, etc. None had ever been declared or registered. I don't even remember those involved. What happens if someone wants to become "legal?" Can someone register these sorts of items? I have never paid much attention to this as I have little interest but the question popped up as I was .... :?