The Custom Firenock Lighted Nock System (3) allows customers to take full advantage of the interchangability of Firenock. Pick from nock style (thirteen options, excluding F/M) nock color (up to nine) , LED function (hunting, intermittent/blinking, target), LED color (six colors), and battery type (BL/BR). Optional accessories like AG0GEL and matched weight packs are also available for a reduced price. Will come as four plus separate packs.
Note : The "F" and "M" styles are not available on this page. Another product page titled "Custom F/M Firenock Lighted Nock System (3)" offers the same options as well as custom O-rings.