That depends on what the definition of is is (oops, wrong question). Actually, it depends on what the definition of "refinish" is. If the nickel is gone, bead blasting can make the exposed steel look a bit like satin nickel, but it won't BE satin nickel.
I have not seen any satin nickel guns with the nickel worn off, but a lot of them are really grubby looking; that finish seems to attract and hold grease and dirt.
My Commander started to look that way, so I stripped everything and did a professional cleaning and refinish job - in the dishwasher. Worked like a charm.
Jim