I have a Sheridan pellet pistol that, outwardly, looks pristine. Works off a CO2 cartridge. Works just fine, but once in awhile, I can hear the compressed gases escaping. I'd like to sell it, but before I do, I want to have it serviced to correct this issue. My question is where would I send this thing to have a proper re-hab performed? I really don't mess with these kind of pistols. My "go-to" is my Webley TEMPEST, and it's the only one I really need.
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