The Tippmann replacement Sear Spring. This product is used in the following guns: 98 Custom Pro Response ACT, A5 Basic, A5 Response, A5 E-Grip Electronic, A5 Stealth, X7 Basic, X7 Basic, X7 Response, X7 Response, X7 E-Grip Electronic, Triumph XL.
The Tippmann Part Number for this product is 02-20.