Amazon.com: Epindon FPS Aim Assist Rings | Target Ring for PS5,PS4,Xbox one X/S, ASTRO C40 ,SCUF ,Switch Pro Controller ,PC Gamepads - Normal strength : Video Games
KontrolFreeks Xbox Pads work really well for the C40. You need to make some cuts but overall, I'm very happy with these. : r/AstroGaming