The Tippmann Valve Cup Seal. Fits exclusively on U.S. Army Series, the 98, and the Pro-Carbine. Replacement Parts are a must!
This product is used in the following guns: Alpha Black Basic, Alpha Black Tactical, Alpha Black E-Grip Electronic, Alpha Black Tactical E-Grip Electronic, Bravo One Basic, 98 Ultra Basic Non-ACT Platinum Series, 98 Custom ACT Platinum Series, 98 Custom Pro ACT Platinum Series, Pro Carbine, Gryphon, Carver One.
The Tippmann Part Number for this product is PA-28.