The ban is expected to come after the Justice Department earlier this year proposed a rule to classify bump stocks and similar devices as prohibited under federal law, as they allow the "shooter of a semiautomatic firearm to initiate a continuous firing cycle with a single pull of the trigger," like banned machine guns, CNN reported, citing unidentified U.S. officials.

"Bump stocks turn semiautomatic guns into illegal machine guns," an unidentified senior Justice Department official told CNN on Wednesday. "This final rule sends a clear message: Illegal guns have no place in a law-and-order society, and we will continue to vigorously enforce the law to keep these illegal weapons off the street."