Transfer port / port bushing for the following Daystate air rifles:
– MK3
– MK4
– Air Ranger
– Air Wolf
– Harrier X2
– Huntsman Classic
– Huntsman Regal & HR
– Revere
– Griffin

Available in different internal diameters – please measure existing size and order the same. Or if adding an aftermarket regulator to an unregulated rifle it is common to increase diameter size.