Fill valve service kit for the Daisy Model 599 air rifle.

If your rifle is leaking back out of the filling port this kit should solve the issue. Contains all seals in the unit.

Includes:
1 x Pressure Gauge sealing o ring (goes under pressure gauge)
1 x Body outer O ring
1 x Body to pressure gauge housing o ring
1 x Inlet valve piston moulding (this is the part that actually stops the air coming back through the filling port)