A federal ban on bump stocks, gun attachments that essentially allow shooters to fire semiautomatic rifles continuously with one pull of the trigger, will begin on Tuesday (March 26). The rule was issued in December when it was decided that bump stocks were included in current prohibitions surrounding semi-automatic weapons. 

Bump stocks got more attention after the 2017 Las Vegas massacre where Stephen Paddock opened fire from his hotel room into a crowd at a nearby music festival. The shooting killed 58 people and wounded hundreds of others. 

People who own bump stocks are being asked to destroy them or drop them off at an ATF field office.