By: CBS News Many products have become popular during the pandemic, including puzzles, home improvement items, and exercise equipment. One item continues to see record sales: Guns. Gun stores nationwide are seeing an increase in customers. The FBI says there were almost 16 million (15,966,389) background checks for firearm purchases during the first four months of this year. That's a 31% increase compared to the same time in 2020. Sales at Fuquay Gun & Gold in North Carolina have been non-stop since the pandemic started. "Every time a stimulus check hits, the lines go around the corner,” says owner Clay Ausley. He says this is the busiest he's been in his 17 years of selling firearms. "There's a tremendous amount of people still buying firearms for home defense this year. Also, a ton of interest in concealed-carry classes and in concealed-carry firearms this year,” Ausley says.