Remove the two 7 mm screws using a PH00 screwdriver.

Forcibly pry the black rubber bracket from the white rail frame. This step causes a small metal bracket inside the rail frame to be dislodged; once this happens the black rubber bracket can be reattached, but the metal bracket cannot be put back into place.

Complete this step for the black rubber bracket located on both the right and left sides of the rail adjustment.