Don’t Understand The 3D Printed Gun Controversy? Watch This Documentary | DIY | Maker |

3D printed guns were viewed as more or less a curiosity when they first started to gain mainstream exposure last year. It wasn’t until the tragedies at Aurora and Sandy Hook that 3D printed firearms became a full blown controversy with gun control advocates calling for therenewal of the Undetectable Firearms Act, and opponents, namely Defense Distributed, pushing the boundaries of 3D printed weaponry.