Just shipped out the Sterling today.
The requested work was for pressing a delrin sleeve in the pump handle one is in there or if you want to make a new one closer to the OD of the barrel that's cool too. Also having both pump arms the same length when fully threaded.
Also in there is a hardline for air if you can get that to work that would be cool otherwise I'll scrap that and the fittings.
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Originally Posted by freebird
lube the shaft and warm the o-ring up in your hand by rubbing it back and forth between hands. then it should go on easier.