Customers at gun shops are looking for 9 mm pistols and shotguns, and 9 mm ammunition has been cleared out as soon as it hit the shelves. (Michael Quine/Las Vegas Review-Journal)
Retail giant Walmart announced on Feb. 28 that it would raise the minimum age to purchase guns to 21. This applies to purchasing firearms and ammunition. The company added it would remove online items. Walmart said it has not sold sporting rifles like the Florida shooter’s AR-15 since 2015.