Lumenok Crossbow Nock Moon Green Pack of 3. . Developed by using some of the most strong and long lasting resources in existence these Crossbow Parts from Lumenok provides you with something that gives you years of consistency. Lumenok has been developing top quality merchandise for a very long time and the Lumenok Crossbow Nock is their way of showing you just how much they are concerned. Here at OpticsPlanet we ensure that it is our obligation to get the most suitable product for all of your specifications and featuring the Lumenok Crossbow Nock is a thing that we are happy to offer. Specifications for Lumenok Crossbow Nock: Manufacturer: Lumenok Quantity: 3 Pack Package Contents: Lumenok Crossbow Nock Lighted crossbow nock offers the shooter the ability to see shot placement and make bolt retrieval easier. Nock is activated by the force of the string on the shot and deactivated by slightly pulling the nock away from the arrow shaft. For use in 2219 aluminum crossbow bolts.