Alpha-Brite Lighted Nock System begins with a Nock-Receiver insert with a 6-sided interior cavity designed to accept a combined LED unit and translucent pegged Alpha-Brite Nock
When you fire your crossbow the bowstring's force will compress the 2 pieces elimate the gap and activate the LED unit
400-Grain finished arrow is designed for use on most crossbows that shoot a 20-inch arrow Pro Elite shafts are inspected for strightness to within 003 and hand-sorted for weight tolerance
