BUMP Act of 2023

The BUMP Act of 2023 (S 1909) prohibits the sale, possession, and transfer of devices that increase the rate of fire on semiautomatic firearms, including "bump stocks" and similar modifications. It directly affects owners of semiautomatic firearms modified to speed up firing or mimic machineguns, requiring them to register such weapons within 120 days of enactment. Key provisions ban devices designed to eliminate the need for separate trigger pulls per shot and define "semiautomatic firearm" to exclude machinegun-like modifications. The bill exempts government entities and pre-existing legal modifications from the ban, provided they are registered.