I have a D800. I bought the grip. To attach the grip one has to remove a piece of rubber that covers contacts in the base of the camera. I stupidly lost the piece of rubber. I inquired about buying another one but ran into the we don't sell parts from Nikon service. I explained how i understand this policy and that they do not want to sell parts to users who might screw things up on their cameras. But this part would take 1 second to install and is made to be removed and re-attached by users. After emails, calls to service, speaking with a supervisor, my only choice is to send the camera to them for repair. (ar)