Easton Sonic 6.0 6MM Bare Shafts *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. 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.