How can anyone object to that? Firearms that are currently illegal by fiat will be brought into the legal system and have the safeguards associated with that system. They will be registered and required to be transfered only to people who have a background check and are fingerprinted.
The anti-freedom types don't want even this mild reform of the system. They would prefer that the firearms remain illegal. It is a travesty that even if someone wishes to make an illegal firearm legal, he or she is not allowed to do so under the current law.
I don't know. But some of those of us who dealt with other, somewhat larger weaponry may have some potential custody disputes. I could well imagine having that sort of problem with my old driver regarding my old shootrin' iron....