Hi chaps. Well I pulled the airsporter out of the cabinet this morning to find is is locked up solid. Can't even cock it slightly so guess the buffer washer has deteriorated and that's why it won't cock. I know from stripping down a Mercury 25yrs ago these bottom ends screw out don't they? What's the best spring compressor to use to strip these buggers down as having to unscrew is harder then the normal knock out pin arrangement on newer guns. Advise please lads will be gratefully received . Chris