RG350M Gamepad Grips
thingiverse
Controller grips for the RG350M, might work for the RG350 as well but I haven't tested so please let me know if you have. With the default scale its a snug fit, if you want less snug just scale it up a little bit 1-2%. These grips will stand up straight. Open to community feedback.
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With this file you will be able to print RG350M Gamepad Grips with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on RG350M Gamepad Grips.