Nockturnal Lighted Half-moon Crossbow Nock (nt-709) Green 3-pack

Nockturnal lighted nocks are a breakthrough design that combines ultra-light performance with a high visibility light source and “instant-on” simplicity that activates upon release. The patent-pending string-activated “hidden linear switch” is protected deep within the nock and will not turn on or off inadvertently. Battery life is over 20 hours.

Will fit inside diameter of .26″ through .314″