— -- 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, ...

For the first half of the 20th century, one of the most important firearms in the U.S. military arsenal was the water-cooled ...

The Five Best US Machine Guns Ever Produced: The United States military has produced some incredible machine guns throughout history, but worldwide, the machine gun has changed warfare forever.

The FBI says machine gun conversion devices, or switches, are on the rise in Wisconsin – and becoming part of daily investigations. A switch is an illegal device that can turn a regular semi-automatic ...