[UPDATE 28.4.2020] V2 release, changed hinge geometry, now stock should fold all the way.
[UPDATE 22.4.2020] Added new version, deleted old ones. New version is made to accommodate asymmetry of upper part of upper body in designs of most manufacturers(see upper pinhole protrusion).
TL;DR if old one fitted, this will too, but now it will fit other designs too. So far I only tested on JG mp5k.
In many places fitting is tight to reduce wobble, some filing may be required. I suggest using QD gearbox, or drilling a hole into gearbox so you could screw adapter into a spring guide, this way it will be sturdier.
Category: Sport & OutdoorsThe author marked this model as their own original creation. Imported from Thingiverse.