CA doesn’t allow private party sales. If I want to sell my .38 to my neighbor we have to go thru an FFL and a 10 day waiting period. This is true for both handguns and long guns. Handguns are automatically registered during the FFL process. It is not done separately or require additional paperwork. There is no license or annual renewal.
As I understand it, we (non-felons, adults) have the right to private ownership of weapons (machine guns notwithstanding). Should the federal government attempt to revoke that right, where do the states stand? Can the states override a federal mandate to turn weapons in? Seems to me that no state outside of New England would put up with that.
Can you loan your guns to someone? If so, why couldn’t you rent them? How about a long term lease? Say, a 200 year lease for, oh, I don’t know, say $500, paid up front?