Tenpoint HEA3793 Alpha Blaze Light Nock HP Bushing Green

The Alpha-Blaze Lighted Nock contains a one-piece Nock/LED unit that is indexed with the vanes and press fits into the arrow’s Aluminum Bushing. Upon firing the crossbow, the bowstring’s force compresses the two pieces and activates the lighted nock. Deactivate the easy on/off Alpha-Blaze lighted nock by pulling the nock straight out until the light turns off. The LED light of the Alpha-Blaze system lasts for approximately eight hours when activated. Features Essential for Crossbow Hunting Easy-to-use one-piece Nock/LED Unit Unmatched durability Super bright LED provides superior arrow flight visibility 505+ FPS approved Bowstring activated Easy deactivation 24-hour battery life when activated (approximate)