Stephen Paddock’s ability to kill scores of concertgoers Sunday night may have come from using modified semi-automatic weapons with high-capacity magazines, something that enabled him to shoot hundreds of rounds in just a few minutes.
When the feds stormed the hotel room that the 64-year-old Nevada resident used to launch his massacre, they found 23 weapons -- along with two devices that are attached to the stocks of semi-automatic guns to allow fully automatic gunfire, two officials familiar with the investigation told The Associated Press.
Automatic weapons fire a stream of bullets when the trigger is pulled once and held. They differ from semiautomatic weapons, which require one trigger pull for eachz round fired.
The deadly shooting at a Las Vegas concert has claimed more than 50 lives and injured hundreds more. It made Nevada the home of the deadliest mass shooting in U.S. history. Here's a look at the gun laws in the state.Video
Las Vegas shooting: What are Nevada's gun laws?
Unless a person is a member of the military or a police agency, obtaining an automatic firearm is difficult and expensive. Potential buyers must first locate a gun dealer who is authorized to sell automatic weapons. Then they must submit applications to both federal and local agencies. If those applications are approved, the buyer must pay $200 for a tax stamp.
But semi-automatic rifles can be modified to fire fully automatic. Sometimes, add-on devices are attached to the stock that allows a method called bump firing – in which the shooter uses the recoil of the gun to push the trigger against the stationary finger allowing for a rapid succession of shots, similar to a fully automatic firearm. Devices called bump stocks can be attached to the rear of a semi-automatic to help facilitate this method.
Other devices like a trigger crank can also modify these weapons so they fire in an automatic fashion at a low cost.
So, he didn't have true automatic weapons..