We've been following the 3D printed gun for a while now. In internet time, it's been generations. In real time, it's been less than a year or so. What is legally defined as a gun has already been printed, but technically that's not the entire object, just some of the parts that make it work. Now, Defense Distributed, the company leading the way into the future of 3D-printed weaponry, has finally 3D-printed an entire gun -- in both the sense that it is legally considered a gun, and that every single piece is 3D-printed.