3D Printed toughed butt pad fro CTR style stocks, can house Nuprol 7.4v or 11.1 1100 batteries.
Stock or Batteries not included.
Link to batteries-
Nuprol 7.4v 1100mah 20c Lipo Battery (combatsouth.co.uk)
Nuprol 11.1v 1100mah 20c Lipo Battery (combatsouth.co.uk)