Killer Instinct’s premium Hypr(TM) Crossbow Bolt now features the new V-Track(TM) nock designed for ultimate accuracy on our narrow axle to axle crossbows. The new V-Track(TM) improves nock to string contact, reduces center serving wear and works out of all Killer Instinct Crossbow Models. The Hypr-V(TM) crossbow bolts are available in 6pks or 3pk lighted and will come standard with all 2025 crossbow models. The V-Track(TM) nock will also be available separately. LENGTH – 20″ STRAIGHTNESS TOLERANCE – .003″ Total Grain Weight: 390 grains with 100gr Point INNER DIAMETER – .300″ New V-Track nock to be used with all current and past crossbow models excluding 1120 Swat XP & Furious Pro 9.5