The archery industry has witnessed a collective shift over the last five years concerning arrow speeds. Today’s bowhunter wants top-performance from his arrows and speed ranks right up there with accuracy and durability. To address this issue, Carbon Express released the Mach 5, which is the fastest hunting arrow in their lineup. Designed for hunters concerned with flat trajectory, tight pin gaps, and a little leeway in the realm of misjudged shot distances, Mach 5 arrows represent a collection of hunter-friendly features. Depending on spine, Mach 5 arrows weigh between 7 and 8.1 grains per inch.