First, the X-Bolt Mountain Pro features a true carbon fiber stock filled with a noise-dampening foam. Additionally, the Cerakote finish on the stainless steel action and barrel is also on the exterior of the stock for added protection. The barrel features a new proprietary lapping process to provide consistent accuracy and easier bore cleaning. Other features include a spiral fluted bolt and bolt knob, threaded muzzle with our new Recoil Hawg muzzle brake.