Gun rights groups had filed separate appeals to Chief Justice John Roberts and Justice Sonia Sotomayor, requesting a temporary hold on the ban. Roberts denied one appeal earlier this week; Sotomayor referred hers to the full court, which denied it on Thursday, allowing the ban to proceed while challenges to it move through the courts.
Bump stocks gained national attention after they were used in the October 2017 mass shooting in Las Vegas, where a gunman used bump-stock outfitted rifles to kill 58 people at an outdoor concert.
The ban requires bump stocks to be destroyed — such as by melting, shredding or crushing — or handed over at an office of the Bureau of Alcohol, Tobacco, Firearms, and Explosives. The ATF recommends making an appointment with the ATF office beforehand.
As NPR's Bill Chappell reported on Wednesday, the anticipation of a ban spurred sales of the devices: