Carbon Express D-Stroyer Arrows feature K360 high modulus carbon weave construction and Dual Spine Weight Forward technology that delivers a heavier front end for tighter groups and better penetration. The 2-spine design reduces oscillation by 50% compared to single-spine designs. K360 100% high modulus carbon weave construction for consistent spine strength and durability Dual Spine Weight Forward technology delivers a heavier front for tighter groups and better penetration 2-spine arrow shaft reduces oscillation by 50% vs. single-spine arrows Q2i Rapt-X 2" vanes Launchpad precision nocks for controlled release and consistent accuracy Pack sets are sorted & matched by spine and weight Spine sorting tolerance: +/- .0025" Weight sorting tolerance: +/- 1.0 grains +/- .003 real straightness
