Imade my own lighted nock today.Watched the youtube video and decided to try it on crossbow bolts.I just got a pair of pliers and twisted and pulled the original nock out.It already had a small hole on the bottom of the nock.I found the right size drill bit and drilled.(not all the way through like the video).The light(Thill replacement light:Walmart $3.50)slide tight into the nock.I didnt have to use super glue or anything it was the perfect tightness.<not sure if thats a word.For the piece that goes in the arrow i just used a peice of a dow rod and drilled a hole in and glued the battery in itand pushed it down in and it fit tight.Tested it out about 10 times and worked perfectly every time.He are are some pictures
