Bump-Stock Ban Left Intact as Top Court Spurns Gun Advocates (1)

The U.S. Supreme Court rejected an appeal by gun-rights advocates and left intact a new federal ban on bump stocks, the attachments that can make a semiautomatic rifle fire like a machine gun.

President Donald Trump’s administration banned bump stocks after about a dozen were found in the hotel room of the shooter in the October 2017 Las Vegas concert massacre. Fifty-eight people were killed in the attack, the deadliest mass shooting in modern American history.

The ban, which imposes criminal penalties, requires people to relinquish or destroy the devices. Gun-rights advocates said U.S. residents possessed 500,000 bump stocks, ...