Breaking: Trump tweet spells out his final decision on bump stocks

Attorney General Jeff Sessions called for a ban on the "bump stock" accessory for certain guns after it was used to lethal effect in the Las Vegas massacre.

Here's what Trump tweeted about it

President Trump tweeted about the ban of bump stocks, for which he appeared to blame former President Obama.

"Obama Administration legalized bump stocks. BAD IDEA," the president tweeted. "As I promised, today the Department of Justice will issue the rule banning BUMP STOCKS with a mandated comment period."

"We will BAN all devices that turn legal weapons into illegal machine guns," he concluded.

Sessions cites Las Vegas massacre

Attorney General Jeff Sessions released a statement in support of the president's announcement about the controversial gun accessory.

The statement read, "today the Department of Justice is publishing for public comment a proposed rulemaking that would define ‘machinegun’ to include bump stock-type devices under federal law—effectively banning them."

"After the senseless attack in Las Vegas, this proposed rule is a critical step in our effort to reduce the threat of gun violence that is in keeping with the Constitution and the laws passed by Congress," Sessions explained.

The device was used by the killer in Las Vegas to convert his guns to fire at what many consider to be a fully automatic rate. Critics of such bans have noted that bump stocks make shooting accurately far more difficult.

Do you even Constitution, bro?

Trump ordered the Department of Justice in February to look into banning bump stocks, but many were puzzled at the move since it's questionable whether the DOJ has the constitutional power on its own to do so. More likely, it would take an act of Congress to ban the accessories so that legal objections to the ban would be harder to mount.

Certain private companies have taken it on themselves to restrict bump stock sales. Walmart announced they would not be selling the accessory, in addition to banning the sale of AR-15 from their stores.