151; -- Half of the 23-gun arsenal discovered inside Stephen Paddock's 32nd floor room at the Mandalay Bay Resort & Casino were rigged with bump stocks, devices that modify rifles to fire faster ...

At least two of the weapons were equipped with so-called bump stocks, attachments that allow a semi-automatic rifle to fire bullets almost ... law prohibits the sale of any machine guns ...

Bump stocks, which can be purchased legally for $99 to $299, allows a shooter to fire as many as 400 to 800 rounds a minute with a single squeeze of the trigger. The devices had been under ...

151; -- The National Rifle Association is calling for a federal review of bump stocks, a weapon modifier that allows semi-automatic weapons to fire faster ... legally for $99 to $299 and ...

The bump-stocks, also known as a "slide fire," can be bought for as little as $99. Whereas a semi-automatic requires the trigger to be pulled after firing each round, a semi-automatic rifle with a ...

A bump-fire stock that attaches to a semi-automatic rifle to increase the firing rate is seen at Good Guys Gun Shop in Orem, Utah, October 4. A bump-fire stock that attaches to a semi-automatic ...