About breech seals for the CFX. They say you have to disassemble the rifle to replace the breech seal, which of course, voids your warranty. NOT TRUE! It takes some care and finesse, but with the rifle cocked and the loading port lever removed, you can slide the whole rotary back and dig the old seal out with a needle or something similar. You do have to be careful, it's easy to push it back too far, then you do have to take it apart, most likely. The better technique might be to pull the cocking lever far enough back to get at the seal, then clamp it in place. I've done it both ways, the second is actually easier, and has the added advantage that if you do push the rotary too far back, you can ease it back into place. I went through this with Gamo almost a year ago, so I don't remember the part number, but I'm sure Bob has it. Just make it clear when you call Gamo that you KNOW you don't have to take the gun apart to replace it, and they should cough up the seals. BTW, it's the same deal as the rest of their seals, a 4 pack for around $10. Good luck.
Dave