u/Porcodiocan

Did some small modifications but finally it's over.

Here it is. Cyma receiver base, all the rest is 3d printed. I designed m all the buffer tube system and stock, no need to remove the stock to remove the batteries, it's just a cap that screw inside the stock, for an easier removal. The motor grip is a design of mine too, it's a tight fit, the flash hider is a free model I found online.