As we have expected to happen for some time, and as the initial Cody Wilson “Liberator” first demonstrated, 3D-printed firearms made of common addititive-manufacturing plastics like ABS or PLA inevitably had to diverge from common steel firearms practice to take advantage of those plastics’ strength — and overcome their weaknesses. That means that, while early prints were nothing but, for example, a plastic version of an AR lower dimensionally identical to its aluminum forbear, but destined for a short life (especially in PLA), more and more designs are innovating in different directions. This series of videos shows the Shuty, a...