Reero
Do you mean limit in a sense of "only x amount of permits can be given out In one year" or "x requirements must be met to require a gun"
The only "requirement" I'm against for getting a CCW is needing a "reason" for owning a gun. I always found that a bit too stringent.
In my state (AL), to be able to carry a concealed handgun you'll need to be 18 or older, pay a small fee, and basically register into a data base to say you own and are likely to carry a handgun. Enforcement is the hardest part most likely, and you don't need to be registered for CCW to actually purchase a pistol, which is the problem i think. In general, I think getting people on the books as owning concealed weapons is a good first step and a nice compromise between the current system and registering individual guns which many people are very against.
CCW laws are super cool but kinda shitty in the same way a lot of drug laws are because they put a really awkward gray area between what is considered concealed and open and leaves it up to interpretation by officers. You can open carry in my state, meaning just owning and carrying a gun is fine, but everyone needs to be able to tell at a glance. I think that leaves too much leeway for what really gets classified as open or concealed carry.
None of this directly solves the issues with gun control, but I think requiring the majority of gun owners to be registered for a CCW or something before making a purchase regardless of where the purchase is would make acquiring guns a big but tolerable pain in the ass. You'd still see crimes of passion with gun owners, but you'd see it be a lot harder to get access to firearms if you weren't vetted at least a little bit. Most guys I know are registered for CCW anyway but they'd probably hate it idk