Upgrade kit for v2 and v3 gearboxes (please double check your v3 cylinder head as some use different designs). Works great with ZCI cylinders.
Includes:
- Aluminium 21.4mm nozzle with single o-ring
- Aluminium 6 vent piston head with bearing
- Aluminium cylinder head with padded bottom and dual o-rings
Cylinder Head Specification
Material: Aluminium
Internal Diameter: 23.9mm
Outer Diameter: 24.1mm
Nozzle Outer Diameter: 5.3mm
Length: 24.3mm
Weight: 10g