Mark, yes I just got off the phone with the Robar people in AZ. They do both NP3 which is exactly what you described. They also do standard electroless nickel finishing also.

I asked them which one of the two finished is better and they said, "NP3" lasts much longer and is more durable.

The sad thing is is that the cost of the gun for an NP3 job is $240.00bucks. That does not cover the cost to send the gun back to your house, which you the customer pays shipping both ways. With UPS, that's $50.00 both ways. So, I'm looking at a $340.00 plating job.

I think now I'll pass on that deal. I'll just get the gun out and wipe it down with an oily rag more often.