Like HowStuffWorks on Facebook!

Firearms

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.

Featured
How Flamethrowers Work

When humans discovered fire, they learned to cook their food in a controlled environment. What came next? Flamethrowers, of course. What do flamethrowers have in common with their living counterpart -- fire breathers?