Gioteck Real Triggers (PS3) : Amazon.co.uk: PC & Video Games
EasySMX Wired PC Game Controller Gamepad Joystick with Dual-Vibration Turbo and Trigger Buttons for Windows/Android/ PS3/ TV Box/Tesla,ESM-9100,Black - Walmart.com
FPS PS3 Custom Controller Hair Trigger Attachments Pro Rapid Fire and Classic | eBay