3 pieces that are easy to print with the flat side down.
The thin one is rather optional and only fills a small gap.
It can be easily glued to the front frame.
The back piece can be clipped on and serves two purposes. It closes the rather big gap at the back and it keeps the GameSir opened at the right width for the Galaxy S9.
The pieces in the pictures were sliced with Cura 5.5.0.
0.6mm Nozzle, 0.28mm layer height, material: PLA
The author marked this model as their own original creation.