Gun stocks were rising broadly Tuesday on news that firearms background check data for last month rose nearly 5 percent. The latest figures represented the second-highest May on record.

A hand gun in the Smith & Wesson booth at 144th National Rifle Association (NRA) Annual Meetings and Exhibits in Nashville, Tennessee, last April.

Firearms makers Smith & Wesson and Sturm Ruger were both up about 2 percent midday. Also, , which gets about 20 percent of its revenue from firearms and ammunition sales, was up about 1.5 percent midday, while Sportsman's Warehouse, another gun retailer, was up nearly 3 percent. (Tweet This)