Ravin Crossbows R339 Features The Ravin Crossbows R339 arrows are constructed from 100 percent pure carbon giving them the strength and consistency needed for reliable crossbow performance shot after shot. Each arrow is held to a tight .001 inch straightness tolerance a precision standard that helps ensure consistent flight paths and tighter groups at the target or in the field. Weighing 400 grains these arrows are matched to Ravin s Helicoil-equipped crossbows for optimal energy transfer and penetration on big game. The 2-inch high profile offset vanes help stabilize the arrow in flight improving accuracy across varying shot distances. High impact brass threaded inserts paired with aluminum nock bushings add durability at the two points of an arrow that see the most stress helping these arrows hold up to repeated use. Polymer nocks provide consistent engagement with the crossbow string for reliable repeatable shots. Each pack contains 3 arrows giving shooters enough on hand for both practice sessions and hunting trips. Designed for use in all Ravin crossbows excluding the R500 and R18 series the Ravin R339 arrow pack is built for hunters and target shooters who demand consistent performance from their equipment. Ravin Crossbows R339 Specifications Manufacturer: Ravin Crossbows Model: R339 Material: Carbon Grain: 400 Straightness Tolerance: .001 Quantity: 3-Pack Compatible Hosts: Ravin Crossbows excluding R500 and R18 Series Available At: GrabAGun