Ravin’s .003 R18 Arrows deliver high speed and accuracy. These premium bolts feature 100% pure carbon construction, and are equipped with Ravin Engineered polymer nocks Features:350 grain (with 100 grain field tip- not included)100% pure carbon constructionStraightness tolerance: .003”High-impact brass threaded inserts2” offset vanesHigh-impact aluminum nock bushingsRavin-engineered polymer nocksNote: For use with Ravin R18 Crossbows only Ravin Crossbows Ravin R18 Arrows .003 6PK R146