The "U" style nock was developed to fit railed crossbows with a 0.131" to 0.137" center serving, and non-railed crossbows with a 0.137" to 0.142" center serving, arrows with a 0.300" ID, and triggers / anti-dry-fire (ADF) systems that require a short-pronged design.
Available in 18 colors / shades (3 nock colors x 6 LED colors)
Full system, on average, weighs only ~31 grains
-
Ready for the only target lighted nock system that is IBO & ASA approved: Firenock “T” circuit
-
Ready for hunting and intermittent lighted nock systems that stay lit / blink for up to 21 days with a BL battery powering a Firenock “H” / “I” red circuit
Reviews
-
U Style Firenock Replacement Nock
Earlier this year I replaced all my Ravin OEM clip on nocks with the U Style Firenock Nock and couldn't be happier. I own 3 Ravin crossbows and was fed up with the premature serving wear from the Ravin OEM nocks. It's an easy replacement and I wish I would have done it sooner. The owner of Firenock ships your order very fast which is another plus for me. Definitely worth the money
-
Much better than Ravin OEM nocks
Got tired of only getting 30 to 40 shots on my R10 & R5X when premature center serving separation would happen. Ravin OEM clip on nocks are garbage and I bought the U nock and replaced them- night and day difference and they were shipped the same day I ordered them.
-
Lights up my Ravin
These are the absolute best lighted nocks on the market. I will never use any other brand. Literally work every single time. I tried the Ravin brand lighted nocks and returned them after having nothing but problems. You absolutely can not go wrong with these.
-
U replacemente Noks
excellent nock that I mount on the Zombie Slayer that I use on my Ravin. A very few nocks with the correct string attachment.