Police arrested a man wanted by the law at the Harrisburg gun show. He was trying to buy a firearm, but one dealer realized something was wrong. "He was wanted," said show manager show manager Nick Jubinski. "State Police came over, picked him up and arrested him."

A salesperson learned about the suspect's wanted status on the phone through the Pennsylvania Insta-Check system.

Vendors like Jack Shuttleworth are required to dial before dealing. "We don't dare sell any gun without doing a background check on it," said Shuttleworth.

It takes about five to ten minutes on average, and gun collector Bill Castle doesn't seem to mind. "it's not a hassle at all as far as i'm concerned. I think it's a good thing. It protects all of us," Castle said.

"It's a good system," Shuttleworth said. "It's the best system you can have."

Shuttleworth and his fellow dealers point out another plan in place. In the interest of safety, all ammunition clips are removed and the actions are tied shut. "If they put a shell in it," Shuttleworth said, "it still wouldn't fire."

There's more security at the door, but the same standard for sellers whether it's here in Harrisburg or back at their shop. "The rules are the same," Jubinski said, "Everybody passes a background check or they don't get a gun."

The gun show attracts many out-of-state customers. Dealers can still run background checks on those folks.

Non-Pennsylvania residents, however, are not allowed to walk out with handguns. They can buy them here, but the firearms have to be shipped to their state of residence.