For four and a half million, you'll get 2 guns that's made out of meteorite. Made by American company Cabot Guns, these 2 fully functional pistols were made by meteorites found in Namibia, Africa. They struck Earth an estimated 4.5 billion years ago.

Some of them were used as art.

Some were used by scientists to study the origins of our universe.

Now enter, the "Big Bang Pistol Set"

Check it out: