Main valve seat (Harper valve seal) suitable for the following Daystate air rifles:
Air Ranger (versions under 40ftlb)
Air Wolf (check internals)
Grffin
Huntsman Classic
Huntsman Regal & HR
Huntsman Revere
Mk4
Pulsar
Red Wolf
Renegade
Wolverine
Wolverine 2
Wolverine R

Available in UK sub 12ftlb spec (4.5mm or 5mm hole) – please check with your existing) or high power spec.
Recently we have seen many customers buying these for tuning their rifle.