The Cyclone Feed System Links the feeder sprocket to the air system. The faster you shoot, the faster the Tippmann 98 Custom, Custom Pro, and Alpha Black feeds. Pull the trigger 15 times a second, and the Tippmann 98 Custom and Custom Pro feeds 15 balls per second. This feed system will Not work with the standard Model 98 or the 98 Custom with E-bolt. Manufactured by Tippmann.