Here's my argument against universal backgroung checks. Although it seems sensible, especially at gun shows, it may very well limit future gun ownership rights. Who's to say the government won't place stricter rules to pass NICS. For example, restrictions could be made on how many firearms are purchased each year. You could reach a maximum ownership limit for each type of firearm. They could add other restrictions, such as, past traffic violations that may fail a NICS. Who knows what else. "Sorry, only brown eyed individuals are allowed to purchase a firearm this year". May sound a little crazy but it could happen. Once the universal background check law is in place for ALL gun sales, it's very easy for politicians to keep adding more restrictions over time until it's impossible to purchase a gun legally. They will errode our 2A right in small pieces over time because it's easier for us to swallow.