3D-printed full-auto bullpup 'ghost guns' can now be made for a couple of hundred dollars — designs have evolved dramatically outside the U.S.

3D-printed "ghost guns" are becoming more accessible and advanced outside the U.S., with designs like the FCG-9 carbine and the Urutau evolving to allow for full-auto firing and streamlined production. Other designs like the Rogue 9 and FGC-9 Mk II Stingray are also emerging, showcasing the innovation in 3D-printed firearms. The article explores the political implications and diverse opinions surrounding these designs, shedding light on the evolution of firearm 3D printing globally.