I have one left, it's a M8 Matheson dual stage regulator, this is what it looks like
It's not ready , just waiting for a solenoid to come in hopefully in a week or so. All new seals, springs, diaphragms and gauges - will be plug and play. Will come with a solenoid and a needle valve, just need your CO2 tank and reactor and you'll be off to the races
Another shot - from the front.
It'll look almost like this M8 Matheson that I sold
The price for this one is $285 and the best part of owning this beside not worrying about adjust the adjustment going out is that you will realize what you paid when you sell it.