I think that's one of their NAMM anniversary basses. Very limited edition. The neck was made for EB/MM by Status Graphite.
It's kind of a "tribute model". Back when they were being built in New Jersey, graphite necks were one of the options they offered.
Useless info time When Pino Palladino played for Paul Young he had a sunburst Stingray with a Status Graphite neck. It soon disapeared and he had an oe neck on it (or a new bass). Musicman did a graphite neck model called the Cutlass I played a black one and wasnt too impressed. I think they did a white one as well. One of my local dealers has one of those grey Stingrays for £1700 (x1.4 for USD) and I darent try it.
I recall in the mid 80's that this was an available option. Found one at a store and had a real fast neck, practically effortless to play. Seems like it was a Cutlass II, had two pups. Very expensive, for the time, over $1000. Green stained color or something like that.
When I first met Bill Dickens, he had the very last Stingray w/ graphite that they made. When the Ernie Ball shop in New Jersey burned down, it was one of the basses that they were able to save.