The E-Trigger™ Electronic Upgrade Kit includes five firing modes (semi-auto, auto-response, full-auto, 3-shot burst, turbo) that can be changed in seconds for rapid (up to 17 balls per second) firing. Requires 9-volt battery. Does not work with 98 Custom. Available on: Custom Pro™

Item # GRPTE98
Tippmann Custom Pro E-Trigger Upgrade Kit