Reply To: FX Royale 500 shooters, help please
Some Royal 500 I have seen are unregulated, not sure if the reg from factory models have different valve seat or spring. But the gun will handle fill pressure not sure of working range of reg.. I would ask Ernest he is doing work on fx regs. The higher you make the pressure the more you have to adjust hammer spring valve spring etc. Plus the quicker you will fall off the reg.