Gamo parts

BREECH SEAL O-RING? Yo!

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Problem here is your gun may be a bit too new and I can't find spare parts anywhere in the whole world online even through Gamo USA and that muzzle brake at the end of your barrel may be a one part barrel deal and I don't think you want to buy a brand new barrel to fix your problem right? Here's what I would do if the pellet is clipping that end piece. I would run an exacto knife and round that inner end piece to clean it up. I wouldn't try to remove it. Is it clipping pellets when shot what's the problem? Yo!