PS4 Elite Controller with Back Paddles PS4 Controller Wireless 1200mAh Remote Bluetooth Control Joystick Modded Custom Gamepad with Turbo Compatible with Playstation 4/Slim/Pro/PC/Android/iOS Black - Walmart.com
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Sony Playstation 4 DualShock 4 Back Button Attachment - Walmart.com
Collective Minds Strike Pack F.P.S. Dominator Series 2 Controller Adapter with Mods & Paddles for PS4 - Walmart.com
PS4 Controller Paddles For Playstation 4 Back Button Attachment For DualShock4 Joystick Rear Extension Keys Turbo Accessories _ - AliExpress Mobile
DUALSHOCK 4 Back Button Attachment | Hardware and Accessories | PlayStation (US)