He sent more info. Here's what he sent me:
Well, i cant send you any spare parts (i dont think) because im pretty sure i dont have any, but again, i do have the owners manual. As far as whats wrong with the gun, it has a slow leak from the regulator (it gets slower with oil, which is why i think its an oring. but fyi- if you pull it apart and its slobbered with oil, that wasnt me, it was the previous owner who told me that seems to fix the leak, but it doesnt).