Lumenok Stryker Bolt End 3 Pack Crescent Orange. The Lumenok (lighted arrow nock) is fast becoming the most popular lighted nock on the market. The Lumenok is a lighted uni-nock and adds only 22 grains of weight to your arrow. Simply remove your nock and put in the Lumenok and you are ready to go. Fits Stryker Bolts.