L1 R1 L2 R2 Trigger Buttons & Spring for Sony Play Station 4 PS4 for dualshock 4 Controllers Replacement parts: Amazon.co.uk: PC & Video Games
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HOW TO CHANGE BUTTONS ON PS4 CONTROLLER L1 L2 R1 R2 TO ALUMINUM - HISONDER - YouTube
Customs Metal Aluminum L1 R1 L2 R2 Extender Extended Controller Trigger Buttons with Spring replacement for Playstation 4 PS4|Replacement Parts & Accessories| - AliExpress
L1 and L2 buttons Playstation 1 controller (Non-dualshock) repair - Free guide - SOSav
Amazon.com: MauSong Replacement Parts L1 L2 R1 R2 Button and 2 Springs for Playstation4 PS4 Controller ( Pack of 6 ) : Video Games