Firenock is the most advanced lighted nock system on the present market. Firenock is employing Missile Arming Technology and Surface-Mount Technology (SMT) which make Firenock not requiring any actuator / pushing / twisting to turn on or off. Firenock lights itself up once it is fired / shot (i.e. by G-force = change in speed, Missile Arming Technology). Firenock will stay lit even hitting hard objects (bone, stone, concrete), the game is jumping vigorously and even submerging into water for weeks.
Firenock nock style selector tool:
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