The three-piece, Alpha-Brite Lighted Nock System begins with a Nock-Receiver insert with a six-sided interior cavity designed to accept a combined LED unit and translucent pegged Alpha-Brite Nock. The Nock Receiver is glued into the nock-end of the arrow and indexed with the vanes. Package includes translucent Alpha-Nocks, LED Units, Nock Receivers (for arrows with shaft sizes .297, .300, .305 I.D), a Nock Receiver and Alignment tool, and a refletching tool.
