Conversion kit for airsoft P226 (and others)

This is a modified version of the model Micro PDW V2 by mussy :
https://www.thingiverse.com/thing:3123635

This version is meant to be used on an airsoft P226, but I guess it also works on some other models.
- I added a reloading lever so that the pistol can be reloaded without pulling the slide.
- Modified the parts to make them consume less matter.
- Also modified the stock system (3rd picture) to change the lenght of the stock using 2 small springs. When pushing the button above, you ca