I should have recorded instructions on how to assemble (and also on how to use, but that's a deeper subject) the PewPew M4 a long time ago, but I never found the motivation to setup everything properly and record it. That's why I am very happy to see that @Makerfabs went and did the work for me instead! Not only the video is much better quality than I would ever manage to make, but it also features an awesome tattoo!