Originally Posted by Treaders
Matt, does that just replace the piston seal or do you need to change springs / modify TP etc?
Will be interesting to see if that eliminates / reduces your POI shift.
Its a direct replacement for the piston seal and can be made to shorten the stroke aswell.
Ive got one in HW97KT to short stroke it, made the cycle quicker but still feels soft due to the poly head and suprising for me power went up due tot eh oring seal.
I shoot the gun quiet regular and cannot say i notice any POI shift apart from different batchs of pellets.