6PCS Lighted Nocks for Crossbow with .300''/7.62mm Inside Diameter,Half Moon Style Lighted Archery nocks

I purchased a pack of these back in Oct of 2016, so they are 8 years old, and still glow brightly! Some of them have been salvaged from damaged bolts, and put in new bolts. I have yet to have a batter go bad. I only have three left as I have lost three. I am very surprised the batteries still work. I keep them in my basement when not out hunting, so they are in a cool dry (de-humified) environment when not in use. Maybe that helps.

These were a tight fit in my 20" Bloodsport Hunter arrows. If those are the arrows you use you'll have to be sure you have the half moon correctly aligned when you insert them because they won't turn in the shaft once they are inserted. If your alignment is off you'll likely need to pull them out to turn them. I haven't had to pull one out yet, but I'm guessing that it won't be easy.These changed my point of aim quite a bit, and changed which were my most accurate arrows. You definitely will want to recheck your zero after installing these. I went with a heavier broadhead to compensate for the increased weight on the back of my arrows in order to maintain a bit of forward weight balance.I really like these nocks. They work better than I thought they would. The button that switches them on takes a significant push, so even if you push them firmly up into your bow string you won't turn them on unintentionally. The button also has a short stroke for it's switching function, so no worries about it being like a dry fire. It's pretty solid contact with the string. I've never had one fail to light up when I shot it either. They work reliably. They are also very easy to switch off after you've fired them. A great product at a great price.

Shot out of crossbow at 360fps, 450 grain 20" bolts. Out of the 3 I've shot they've all lit up. Very bright in complete darkness. My crossbow setup has been consistently accurate at an indoor range at 30 yards with standard nocks, tested one bolt with standard nock and illuminated nock, the illuminated one shot the same POI. My bolts are 0.300" exactly, standard nocks are 0.302". The illuminated nocks seem to measure inconsistently around the diameter ranging from 0.298-0.302", leaving some of them a little loose with the ability to turn in the bolt. However it doesn't appear to affect accuracy, would need to do more testing.

Works just as advertised. Easy to install, easy to turn off and very bright.

Shipping was very quick, good price for the quality, haven't used yet but will be trying them this weekend, build looks very sound and of good quality, ha e no doubts of their functionabiliry, love that you can turn them on & off, would recommend to anyone.

I ordered these after watching a YouTube video where these same nocks were linked in the description. I was able to remove the original nocks simply by using an aluminum tig filler rod. The original nocks were dimensionally consistent at 0.300 to 0.301 inch (outside). These lighted nocks were no where near dimensionally consistent. They measured from 0.294 to 0.304 inches. Where I measured was through the center of the nock from the land on one side to the land on the other side. I filed them to get each one to 0.300 inches. It didn't take more than two swipes with a small triangular file to get them to size (there are six of the lands you'll need to file - see the picture), but I still took one swipe and measured, then another swipe and measured. If you elect to do this then use very little pressure until you're confident you know how much pressure to apply. As far as weight goes they are advertised as being 25 grains each. None weighed less than 26.3 grains. The heaviest (all measured after sizing was completed) measured 26.6 grains and the lightest came in at 26.3 grains with the average at 26.4 grains. They lit consistently and shut off consistently with the small screwdriver included. I used one arrow at first almost exclusively and shot it at least 10 times without issue turning on when shot. I believe these will be a great help in anything but bright sunlight. I have photos showing the intensity in both situations. One thing I did notice was the trajectory of the arrows was affected due to the added weight in the rear of the arrow. The arrows did not enter the target squarely after adding the lighted nocks. I cured this issue by switching to a heavier field tip. I was using 100 grain field tips, and switched to 125 grain field tips and now the arrows again are square to the target - that is if I'm shooting square to the target... I'm sure I would have stressed the rear of my arrows and I may have had the same mishap that one other reviewer had if I had not adjusted the nock diameter to match the original nocks removed. These lighted nocks are advertised as being 0.300 . Know that exactly zero of the six I received were the correct 0.300in diameter. A measurement of 0.304 was the average width while one single measurement across on one single nock was 0.294 inches. The smaller diameter did not affect the grip of that nock as the other two points were 0.300 after filing. That particular nock may end up being able to be turned or twisted as it is smaller in that one dimension, but I've shot all six without incident after I trimmed them to size.

The just work. Not expensive. Used for yrs ni. Restes easy. Can use over and over. Bright and stays lit. Dont hunt without them.

They don’t fit my bolts smh and u have to use a mini screwdriver to turn the light off do not buy