Firearms are one of the oldest and most evolved weapon systems. From flintlocks to automatic weapons and flamethrowers, learn how firearms have been used to wage wars and save lives.
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HowStuffWorks explains two ways that gun owners are modifying their semi-automatic weapons to fire like automatic ones.
If you've ever watched a gun fired into the air at a celebration, you've probably wondered where that bullet ends up. We've got the answer.
The ArmaLite AR-15 rifle has become a hot-button issue in the American landscape. Where did the rifle originate and how did it become so controversial?
All six countries are in the Americas.
By Dave Roos
Would populations boom and violence cease? Or would humans and human nature essentially remain the same?
The term "semi-automatic weapon" is used in the U.S. media often. But what does it really mean? Is it just another term for a machine gun?
By Chris Opfer
President Joe Biden announced new regulations surrounding ghost guns. What are these untraceable guns that allow a purchaser to assemble them from parts?
Do you know which features earn an ordinary firearm the "assault" label in the U.S.? There's more to that definition than just semi-automatic action.