The Victory Armor Piercing line of arrow shafts is an ultra-small diameter, thick walled arrow designed for accuracy and increased penetration. Features high quality carbon composite construction and Victory's ICE coating for a smooth polished finished. Straightness tolerance of +-. 003" and weight tolerance of +- 0. 5 grains. Available in sizes 300 (8. 7 GPI), 350 (7. 8 GPI), 400 (7. 1 GPI), and 500 (6. 0 GPI). Nocks and inserts included.