Just to add JC, that is the same gun I used for 15+ years to spray base at work. Day in, day out. It was my go to gun doing collision. There are no gaskets to wear out in that gun. Take it apart and look at the needle contact pad. If you see a lot of wear there it's not a good sign but it will still spray decent. Also check that the holes in the nozzle are not wallowed out from someone using something metallic to clean them if they got plugged. You can still find some parts for them on Ebay (they are approaching 25 years old) but in reality the only things that you would ever need to replace would be the needle/ nozzle set and then only if extremely worn or abused. For $90 it's definitely worth taking a chance.