BlackOut X3 Hunter Carbon Arrows are a superb integration of pro-level performance and wallet-friendly pricing. With an improved straightness factor of .003, they deliver an extra edge of precision that can make the critical difference between a clean kill and an empty freezer. 100% carbon for durability and smooth penetration. Arrows are full length (32). Nocks installed and inserts loose. Per 12. Straightness factor: .003. Wt. tolerance: 2 gr. Sizes: 300, 340, 400. Blackout X3 Hunter Carbon Arrows Draw Weight(lbs.) 26 27 28 29 30 31 50-55 - - 400 400 400