7 Ways to Fix R2/L2 Trigger Button on DualShock 4 PS4 Controller (stuck, worn spring, sticky) how to - YouTube
HOW TO CHANGE BUTTONS ON PS4 CONTROLLER L1 L2 R1 R2 TO ALUMINUM - HISONDER - YouTube
R2 L2 Dual Trigger Extender Attachment Extra Longer Button Part For Sony Playstation Dualshock 4 Ps4 Pro Slim Controller Gamepad - Accessories - AliExpress