Thousands packed the Lancaster County Event Center this weekend for one of the biggest gun shows organizers have ever seen.

Larry Pryor has also been buying and selling guns for more than 30 years.

“They said yesterday, we had about 4,000 people,” said Pryor. “That’s probably about double what we normally do on a Saturday.”

Vendors at the show said it’s because gun owners fear President Obama's attempt to ban assault weapons, and high capacity magazines. He also wants to add more background checks for gun purchases.

"The political environment is something that has caused people to believe they need guns now in case they're going to be banned," said Ardis Moody, a secretary and treasurer of the Rock Creek Renegades. The Renegades sponsored the gun show.