yep spot on, some of the smaller ones where I was unable to get Polyurethane I used silicon as well which worked fine, I did also make a new valve seal from nylon, that was 3 years ago and the pistol is still all good, I sold it to a friend and he still uses it on a regular basis. Really easy to strip and with the age of them a seal kit would be well worth doing, Protek may actually have a full kit in stock which will save you searching for the sizes.Originally Posted by zooma
If you have a spare cylinder try that also as it is possible it is the cylinder that has the fault not the pistol, again this will most likely be no more than a strip/clean and seal, there really isn't that much to go very wrong on them.
Nige
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