King Arms Ver.3 9mm Gear Box
A King Arms gearbox shell made to replace any shell damage or upgrade the structural integrity of your gearbox. This gearbox uses 6 included 9mm ball bearings and a SM / G36 type selector plate.
- SM / G36 selector plate
- King Arms Replacement Parts
- Package comes with 9mm bearing bushings and SM selector plate.
- Material: Zinc alloy