WTB: Gearbox or cheap m4 to learn airsoft technitaning

[DunnoDino]

Im looking for a gearbox or m4 so i can take it apart to learn for my main airsoft gun. 

 

[JinxDuh]

Im looking for a gearbox or m4 so i can take it apart to learn for my main airsoft gun. 

Click to shrink...

https://airsoft-forums.uk/classifieds/submit/?do=submit&category=18&_new=1

There's a section in the classifieds specifically for WTB.

 

[Skara]

Im looking for a gearbox or m4 so i can take it apart to learn for my main airsoft gun. 

Click to shrink...

Go to your local retailer and ask for a boneyard V2 gearbox.. Though you may want to add a lower receiver and pistol grip so that you can learn and experiment with the whole mechanical system assembled