I take no responsibility for your actions with this gun if you should decide to make it, or if you are not legally allowed to own such a gun according to the laws of your country, state, province and yet still decide to make it. This is an airsoft gun only, not a real firearm, however it can do damage if aimed at the wrong place. Treat it responsibly and use the appropriate safety gear.
I made this PDW conversion kit that is compatible with WE/TM 19 gbb. The v2 stock file works with the railed cover. The tab is used to keep the external trigger from falling out. Tried using three other brands of ABS filament and it would crack down the sides every time. The only brand that I got to work well is Hatchbox ABS filament.
Print and assembly instruction video https://www.youtube.com/watch?v=dx2U6KVxVcc