Automatic Rifles Are Banned. Here's How the Las Vegas Shooter Could Have Gotten One The killer shot his hundreds of victims with inhuman speed. Authorities have confirmed that he did so by using a "bump stock," which enables semi-automatic rifles to fire at nearly the rate of their fully automatic counterparts. Anyone who has watched the sickening video clips of Sunday night's Las Vegas mass shoot
![How the Vegas Shooter Could've Gotten a Banned Automatic Rifle](https://cdn-ak-scissors.b.st-hatena.com/image/square/ed7c35c7eb11f8098e778dfecd916bc347e49a9d/height=288;version=1;width=512/https%3A%2F%2Fmedia.wired.com%2Fphotos%2F59d2b6db46d8e2112e739a2c%2F191%3A100%2Fw_1280%2Cc_limit%2FM16-FA-157406050.jpg)