Protect yourself by printing your own handgun

That unregistered, untraceable 3D-printed handgun you've been waiting for is finally here.

The world's first entirely 3D-printed gun (photo: Michael Thad Carter, Forbes)

OK, it isn't pretty. In fact, it looks like the spray nozzle on a bottle of Windex. But it works. And you can bet the gun-control crowd will be up in arms about it (no pun intended).