I bought mine used and had it serviced, including new seals, by Airgunwerks. Very satisfied with the service. In general, it seems like the newer generation of airgun seals have improved materials, require less maintenance, and last much longer. FWIW, the new seals on mine are blue.

I'm sure that seal replacement, etc., are not beyond DIY, but I don't trust my own competence in such things these days.

Paul

Stupidity has its way, while its cousin, evil, runs rampant.