Replacement O-rings for Firenock Battery Casing
Replacement O-rings for Firenock Battery Casing is designed for old Firenock lighted nock (Firenock circuit with dual loop battery connector, made before 2014) and without the use of extreme shock end. With old Firenock lighted nock and without the use of extreme shock end, your old Firenock lighted nock could only be shot at lower speed (less than 270fps) and into soft targets, otherwise your Firenock lighted nock will be damaged and light will turn off upon impact. This battery casing O-ring can only work for old S, A, E, and Y style Firenock lighted nock only.
- 7 O-rings for Battery Casing (read above before purchase)