Easton Full Metal Jacket Arrow 300 Blazer Vanes 6 pk. 17840. Straightness tolerance of +-.002". Available in sizes 500 (9.1 GPI) 400 (10.2 GPI) 340 (11.3 GPI) and 300 (12.0 GPI). Includes X Nocks and HIT inserts. Factory fletched with 2" Blazer vanes....