Updated at 2:40 p.m.: Revised to include comment from a Bureau of Alcohol, Tobacco, Firearms and Explosives spokesman.

WASHINGTON — On the anniversary of the mass shooting in Las Vegas that left 58 people dead, President Donald Trump said a ban on bump stock devices would be enacted in “two or three weeks.”

“We’re knocking out bump stocks. I’ve told the NRA, I’ve told them bump stocks are gone,” Trump said Monday at a news conference.

Las Vegas shooter Stephen Paddock used the devices to fire more than 1,100 rounds of ammunition in 10 minutes. A bump stock is a plastic add-on that can allow a semi-automatic firearm to operate like a machine gun.

Most of the devices were produced by Slide Fire, a small company outside Abilene. Slide Fire closed its online store in June and has referred customers seeking bump stocks to a Fort Worth-based company called RW Arms.

A spokesman for the Bureau of Alcohol, Tobacco, Firearms and Explosives said the Justice Department submitted a proposed final ban to the Office of Management and Budget on Sept. 27.

That started the clock on a review period that could last up to 90 days. There is no minimum review period.

Trump asked Attorney General Jeff Sessions to explore a regulatory ban on bump stocks in February. The measure received 193,297 comments during a public comment period that ended June 27. Legislation to ban the devices stalled in Congress.