>might want to look up "gun show loophole"

I've never understood this. There is no "gun show loophole" anymore, if there ever was. Some states have two different standards required things like background checks and identification for gun sales between private party sales and dealer sales. If a dealer goes to a gun show, they have to background check their buyers just like anywhere else. Similarly, if a private party (in a state where they're not required to background check) sells a gun on Craigslist, they're equally unrequired to background check.

Many states, including most of the "anti-gun" states, have moved to requiring background checks from all sellers, including person-to-person transfers and even gifts from family.

The "gun show loophole" is massively overblown. There's nothing special about gun shows in it.