Are you talking about the piston? If the piston is cracked then its a simple replacement, i cant remember, did you buy them from my store, in any case i will send you out a new one for free if you want. As long as it is either Shocker, EGO/5/6/ etek/2, ego7, MINI, ION or PMR as those are the only Kila detents i stock at the moment.