Its latest offerings are AR-15-style rifles and handguns chambered in 9 mm Luger using a patent-pending design that dispenses with the traditional AR receiver extension and buffer system.

For comparison, a 9-millimeter handgun's bullets travel ... Since different types of AR-15-style rifles use different kinds of bullets, Sakran said the severity of the injury to the permanent ...

According to Nashville police, the shooter walked into the private Christian elementary school Monday armed with a handgun, but also an AR-15-style ... For example, a 9-millimeter handgun ...

These rifles are widespread. The Washington Post suggested last year, citing survey data, that about 1 in 20 Americans owns ...

But there's another thing: these cities—and the mass shootings that happened there—have in common: the gunmen, all young men wearing body armor, used AR-15-style rifles. People hold a vigil at ...

“Use what they use,” exhorted one ad displaying professionals wielding tactical rifles. Now, about 1 in 20 U.S. adults own at least one AR-15. That’s roughly 16 million people, storing ...

AR-15-style rifles have been a particular point of concern among gun control proponents as they have often been the weapon of choice in mass shootings. The high-capacity firearms can fire rounds ...

Other manufacturers now make similar weapons, but the generic term AR-15 is commonly used for all of them. Although fully automatic rifles can fire continuously, a semi-automatic requires that the ...

Editor’s note: The photos, videos and personal accounts below are extremely disturbing and may be too upsetting for some people. Read why The Post is publishing this story. Icon: Scroll down to ...