HamburgerFPS shows his 3D printed SMG Kit for the Hi-Capa Gas Blowback. This kit, specifically designed for the Hi Capa 5.1 and MEU (rail version), has been successfully tested with both TM Hi Capa and KJW (KP 05, 07, 08, 11) without encountering any issues. It's important to note that the dimensions of the dish head screws include the head, unlike the Socket Head Cap Screw dimensions. Furthermore, all these dimensions follow the metric system.