Do you have a gun gathering dust in your closet, your garage, or your attic? Maybe you should sell it. The gun market is booming right now, and it's easy to sell for a great price online. But how great? Let's figure out how much your gun is worth.

Two of the biggest online firearms marketplaces in the world. Which has the best deals? ArmsList and GunBroker are both famous for having great deals on guns.  And every so often you find a price that is jaw-dropping.  That's why there are lots of people addicted to scrolling through the