hi there , new to your forum. back to airguns after a 15 year break.
I have inherited a mk 4 airsporter??? (GI15774) as a winter project...rusty a bit, half rubbed down to metal. still fires although bit twangy. stock ok.
have got a new titan spring , seal and buffer washer for starters. had to rub it all down to metal, cost is an issue so is it worth re-blueing or doing a neat spray job on it??
now on the tap i think i'm missing some bits , on one in gunshop there is an audible click where the ball bearing locates between open and closed. I have no spring or bearing and i cant see where it would fit. the tap is able to rotate 360 deg when stock is off, there does seem to be a machined out piece opposite side to the tap handle???? confused???
any experts out there that can help with this tune up/winter project
thanks for taking time to read. Rich