Ravin’s 500 Grain HD .001 Arrows deliver high speed and accuracy. These premium bolts feature 100% pure carbon construction, and are equipped with Ravin Engineered polymer nocks. Features 500 grain (with 100 grain field tip- not included)100% pure carbon constructionStraightness tolerance: .001”High-impact brass threaded inserts2” offset vanesHigh-impact aluminum nock bushingsNote: For use with Ravin Crossbows only Ravin Crossbows Ravin Premium Arrows 500gr HD .001 6PK R149