Easton X10 Parallel Pro 4mm Arrow Shafts 660 Spine – 1 Dozen

The Easton X10 Parallel Pro 4mm Arrow Shafts deliver the match-grade precision and consistency that competitive archers demand at the highest levels of the sport. Built on the legacy of the world-renowned X10 lineup, these shafts feature an aerospace alloy core construction engineered to meet rigorous global competition standards — making them a trusted choice for Olympic-style target archery, indoor competition, and field archery alike.

The 660 spine designation offers a specific flex profile suited to archers dialing in their setup for maximum grouping consistency and downrange accuracy. Each shaft is weight-coded for optimal balance and produced to Easton’s famously strict manufacturing tolerances, including a proprietary five-point straightness check that ensures every shaft in the dozen meets match-grade quality standards. With 15 available spine values across the X10 Parallel Pro line, there’s a precisely matched option for virtually every draw length, draw weight, and arrow length combination.

The slim 4mm parallel profile reduces wind drift and improves penetration through the scoring rings — a critical advantage in tight competition where every millimeter counts. Whether you’re preparing for a national tournament or pushing your personal best on the range, the Easton X10 Parallel Pro 4mm 660 shafts provide the repeatable performance your scores depend on.

Order online through Deep Roots Rifle Co for fast shipping, or stop by our local store in Eustis, Florida, where our knowledgeable staff can help you select the right spine and build out your competition arrow setup.