COOL
I was using the one's from Cabela's for a long time, they came in a 6 pack of bolts and 3 then would have the lighted nocks on, I think , they used to be like 40 bucks for the 6 bolts and 3 lighted nocks, IMO a great BUY
they were magnetic ON/OFF deal and battery's lasted YRS,(have some I haven't used in 7+ yrs old now and they still light up if I run them under a magnet!, so, again they LAST long!, actually checked one a few weeks ago,a s a buddy asked me about them!
for my set up, simply placed a magnet under my scopes Objective lens and the set up perfect IMO
no twisting or tweaking a nock to do the ON OFF deal, which I really liked!
Not sure if they still have them, but if so, well worth the costs, both nocks and bolts flew true!
if anyone wants GREAT invention IDEA<
I have had some deer run off or just struggled to find a bolt that sunk into the ground past the nock
NOW< if someone made a nock that lighted up, AND< say after 30 minutes or so, would start to BEEP
I think that would be an awesome idea
make recovering a lost bolt / arrow, pretty easy, and heck, if bolt /arrow stayed in the game animal, would help you find that as well
Food for thought, and sorry to get of topic