Easton Sonic 6.0 6MM *Nock Colors Vary OVERVIEW: Go fast or go heavy! The Easton Sonic 6.0 is a 6mm high-performance hunting arrow engineered with high-performance speed and hunting accuracy in mind. The Sonic 6.0 is built from scratch in the USA using Eastons seamless Acu-Carbon process for 100% weight and spine consistency from shaft to shaft and from dozen to dozen. Lighter overall mass weight also provides for a wider-range of arrow build options; from light-weight speed setups to high-FOC/high-momentum heavyweights. Sonic 6.0 features another Easton first factory-fletched helical utilizing our 2 Bully vane, designed exclusively for Easton by Bohning to provide the utmost in broadhead accuracy. The Sonic 6.0 is available in six spines (250, 300, 340, 400, 500, and 600) providing a high-performance option for every type of bowhunter. 6mm nocks pre-installed. Compatible with standard thread broadheads and field points.