1 Set LB RB LT RT ABXY Bumper Triggers Thumbsticks D pad Bullet Buttons Full Buttons
Amazon.com: Replacement LB RB Tactile Switch Bumper Button For Xbox 360 Xbox One Controller (2Pcs) : Video Games
Xbox 360 Controller - Fix Unresponsive Bumpers With Duct Tape! - YouTube
Decided to fix the dead bumper on my old 360 controller. Found out you can get custom parts for cheap on AliExpress, and one thing led to another : r/gaming
Amazon.com: 10pcs RB LB Bumper Switch Button Replacement Repair Part 6 x 6 x 5mm Compatible with Microsoft Xbox One Xbox 360 Controller Black : Toys & Games