Features: – Bone-Crushing Penetration Heavy grain weight creates maximum kinetic energy and greater knock-down power. – Advanced Construction Ensures spine consistency for greater accuracy. And the composite material is extremely durable at impact for exceptional reliability and repeat performance. – Real Straightness Precision sorted for straightness to +/- 0.004 for repeat maximum consistency (maximum measurement not an average). – 6-Pack includes inserted Moon nocks 6 Universal nocks and 6 C nocks. – 3-Pack includes inserted Moon nocks 3 Universal nocks and 3 C Nocks. – 3-Pack Lighted Crossbolts includes inserted Moon nocks 3 Flat nocks and 3 Red Launchpad Lighted nocks. – The PileDriver® Crossbolt is the heaviest carbon composite crossbolt in the Carbon Express® lineup. Designed for the hunter who wants ultimate penetration the PileDriver® Crossbolt instills supreme confidence when tracking even the largest of prey. All 6-packs of PileDriver® Crossbolts include inserted moon nocks plus 6 universal flat nocks. – Model: 52148 – Length/Diameter: 20 / 0.348 – Quantity: 3-pack plus 3 red lighted nocks – Grains: 442