Saturday's incidents occurred on 'Gun Appreciation Day," an event led by a gun rights group that urged Americans to "go to your local gun store, gun range or gun show with your Constitution, American flags and your 'Hands off my Guns' sign to send a loud and clear message."

Sen. Charles Schumer, a New York Democrat, last Sunday issued a statement predicting this event would drive up sales of things like "assault-style rifles," which have already "skyrocketed" in the wake of the Newtown mass shooting.

Jabari Richards, a gun enthusiast, told WRAL at the Raleigh, North Carolina, show that he thought some reforms were wise.

"I think there should be background checks for everybody," Richards said, "because then you know they ... are capable of having a gun."

But another man at the Raleigh show said it was useless for Washington to step in.

"The gun laws that they have on the books aren't enforced, don't do any good," Al Galbraith said.