FriendlyFire
Codex WMDicanious
Your point? Gun sales at gun shows are still subject to the same laws and regulations that gun sales from a conventional store are subject to. The seller still has to have an FFL and the buyer still needs to get an "instant" background check from the FBI (which can take several days despite being called "instant"). This whole "you can purchase a gun at a gun show, no questions asked" thing is just a baseless myth perpetuated by the gun control crowd.
Please: if you are going to argue for gun control, fine. All I ask is that you at least know what you are talking about before perpetuating falsehoods and misconceptions that just make you look foolish.
Looks like Federal laws gun show loophole exisit, but nine states have universal background checks that close this loophole and a few other states have a mismash of laws.
Gun show loophole
sales of firearms by private sellers, including those done at gun shows, dubbed the "secondary market".[1] The term refers to the concept that a loophole in federal law exists, under which "any person may sell a firearm to an unlicensed resident of the state where they reside, as long as they do not know or have reasonable cause to believe the person is prohibited from receiving or possessing firearms".[2][3][4] Under federal law, private-party sellers are not required to perform background checks on buyers, whether at a gun show or other venue. They also are not required to record the sale, or ask for identification
As of November 2016, 19 states and Washington D.C. have background check requirements beyond federal law. Nine states require universal background checks at the point of sale for all transfers, including purchases from unlicensed sellers. Maryland and Pennsylvania laws in this regard are limited to handguns. Hawaii, Illinois, Massachusetts and New Jersey require any firearm purchaser to obtain a permit
https://en.wikipedia.org/wiki/Gun_show_loophole