12 Easton Full Metal Jacket N – Fused Carbon Shafts for more bone – crushing power! When you need harder-hitting arrows and extra knockdown power… make it Easton Full Metal Jacket! Delivering more penetration and shorter blood trails, thanks to a high-strength, N-FUSED carbon core wrapped in a full metal jacket. Deeper penetration and more pass-throughs: Easy target pull; High-strength N-FUSED carbon core with 7075 alloy metal jacket; Guaranteed straightness: .002″; Weight tolerance: 2 grains; X Nocks installed; HIT Insert, chamfer stone, installation tool, HIT epoxy included; Gun Metal Black finish. Sizes available: 300 (12.00 gr / inch), 340 (11.3 gr / inch), 400 (10.2 gr / inch) and 500 (9.1 gr / inch).