a57 Vertical grip from Presion
I wonder if this grip will fit. In the picture i see a part which goes into the battery compartment. On the a57 and a65 you cant remove the door of the compartment and there are no electrical contacts there for using the camera.
As i know there are no real full specced grips for the A57/A65 other than this one which let you use the camera with the remotecable attached: click