The accuracy of your shot hinges on the bolt you use, that's why Diamond Archery has refined the Diamond Accustrike Bolts to the pinnacle of performance. Built of shatter-resistant resin, these laser-precision crossbow bolts boast a front-of-center balance for dead-on accuracy and enhanced flight. Octane's Set and Forget nock point rotates with the high-velocity vanes, so it always aligns with the string. Aluminum bushing protects against string damage. Per 6. Length: 20". Straightness factor: ± .005". Weight Tolerance: ± 2 gr. Weight: 295 gr.