Buy the O rings from somewhere else, try the Airgun Doctor, he knows a lot about pre Hatsan Webleys!
I have a nice pre 2006 Raider 10 which requires a main valve seal. I am able to purchase a valve stem but it appears that the corresponding seal is no longer available. This renders the rifle completely U.S. I am sure someone somewhere on this forum has an answer to my problem (fingers crossed)
Buy the O rings from somewhere else, try the Airgun Doctor, he knows a lot about pre Hatsan Webleys!