Selectively engineered for higher velocity to create a flatter trajectory and increased accuracy. The advanced carbon composite design delivers greater consistency and exceptional durability. The Mutiny features Carbon Express unique Diamond-coat finish that provides greater durability and a smoother, slicker surface for easy target removal. Straightness tolerance: ± .003". Weight tolerance: ± 2.0 grain. Grains per inch: 8.2gpi w/150, 8.5gpi w/250, 9.4gpi w/350. 6 arrows per pack.