FIRENOCK Blinking crossbow lighted nock U3i-R (Standard package)

Description

Brand New
FIRENOCK Blinking crossbow lighted nock U3i-R (Standard package)
(U=U style nock, 3=3 pack, i=intermittent/blinking, R=Red LED)
Firenock is the most advanced lighted nock system on the present market.  Firenock employs Missile Arming Technology and Fuzzy Logic Technology which make Firenock not requiring any actuator / pushing / twisting to turn on or off.
Firenock lights itself up once it is fired / shot (i.e. by G-force = change in speed, a Missile Arming Technology).  With Fuzzy Logic Technology, Firenock will stay lit even the game is jumping vigorously and even hitting into hard objects (bone, stone, concrete).
Firenock is waterproof design which it will stay lit even your arrow is submerged into water. To turn Firenock off, just hold your arrow perpendicular to the ground motionless for 7 seconds and drop the nock against a semi hard surface. Firenock is simply a smart nock!
See Firenock lighted nock on youtube (just input " firenock nock")
Features:
USA made G switch technology, LED activates when it is shot
No actuator magnet, actuator adaptor or sticker is needed
Field replaceable nock
Field replaceable battery
Ultra bright LED (up to 11,000 LUX focus-beam LED)
Ultra long runtime (21 days of continuous blinking)
24K Gold plated connectors for best reliability and corrosion resistance
Blood proof / Waterproof design
EZ coil for simple battery installation
Can shoot into hard objects / over 290 fps and stays lit
Weighs ~31 grain with the nock
Contents:
3 pcs "H"ez Intermittent circuits in red
6 pcs "U" style nocks in red
3 pcs Extreme Shock End Caps with O-rings
1 pc End Cap Installation Tool
3 pcs Batteries with O-rings
1 AGOGEL for gluing End Caps
Arrow fit List (Carbon Crossbow):
"U" Style nock is designed to be used on crossbow with serving size 0.135+/-0.005" and crossbow arrow shaft with 0.300" ID
Notes:
Gel type super glue (e.g. Firenock AG0GEL) is needed to successfully install Extreme Shock End Cap
Clean arrow shaft with acetone before installation of End Cap
Put glue into the cleaned arrow shaft (do not put glue on End Cap / Tool)
Push End Cap with tool straight (do not rotate) into the arrow shaft during installation of End Cap