3D printed gun! not quite there yet
Nick Griffen stashed this in /k/
The 3D printed AR15 lower receiver (firing FN 5.7 round) only lasted six rounds before it snapped to a rather humorous effect.
“We knew it would break, probably,” says Cody Wilson, who heads the Wiki Weapon project. “But I don’t think we thought it’d break within six [rounds]. We thought it’d break within 20.”