Built for maximum kinetic energy and penetration. MaxxKe technology reduces the twisting force imparted on the arrow during launch to increase kinetic energy and accuracy. Offers a heavier grain weight than the standard VAP arrow shaft. Straightness tolerance of +-.001”. Available in sizes 300 (9.5 GPI), 350 (8.8 GPI), and 400 (8.1 GPI). Includes F nocks and SHOK inserts.