Mmike, yes it is for the phantom on sme mount. Before I decided to go with Phantom, I called Michell Engineering, they are very friendly and helpful and provided the armboard as well as telling me there are many happy Orbe owners using Phantom. I am not sure whether Phantom can be used with Gyro by the way, weights are different.
You should contact to Steve Rowland (a wonderful man and an audiophile) from Michell Engineering for best info or contact to your Michell dealer.