In this video show up close the nock fit and spec with Firenock U nock and Ravin nock.
For those using "J nock" an complaining a Firenock is too lose,, you are using the wrong nock.
For those who have nock fit issues and don't know your serving spec, you should get a tool to measure it before...
GAS string and 4 cables set.
Ravin R26 spec , those who shoot factory Ravin nocks
$130 TYD anywhere in the lower US48 .
Will ship with 1-3 business days after paid in full .
I need email, name shipping detail to send PayPal invoice