Firenock "J" was initially designed as the "big brother" of the "Q" nock in 2013. Unfortunately, crossbows at the time had trigger boxes that did not allow for a long-prong design. Therefore, the short prongs were born and awarded a US design patent (D171389).
The "J" style nock was developed to fit railed crossbows with a 0.151" to 0.157" center serving, and non-railed crossbows with a 0.157" to 0.162" 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 (5 nock colors x 6 LED colors)
Full system, on average, weighs only ~31 grains
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Ready for the only target lighted nock system that is IBO & ASA approved: Firenock “T” circuit
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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
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Firenock J style
Bought these nocks to use with my Hyper Raptor crossbow. Very happy with them, will buy again as needed
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Firenock J
Bought nocks for use with Hyper Raptor crossbow after reading about them being a good fit on the string. I am very happy with them and also great to know this will solve my lighted nock issue when hunting season comes!
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Total Quality Product
As with all Firenock products, these are precision Nocks that fit right the first time,and every time.These are the Roll's Royce of Nocks.