When I saw their first video I got the impression that this crowd weren’t smart enough to build a reprap and just wanted to fund an expensive printer, and that their home printable design will never arrive. I’m still thinking along these lines.
http://hackaday.com/2013/01/15/print-your-own-30-round-ar15-magazine/
I still think they’re trolling in an effort to scare lawmakers into banning 3D prints of gun-related items.
I thought they were doing this to encourage more folks to volunteer for the Darwin Awards. 