The X-Bolt 2 Mountain Pro SPR rifle has a barrel that is 4" shorter than standard lengths to keep overall rifle length in check when using a suppressor. The rifle features a wrapped carbon fiber barrel; a carbon fiber stock with adjustable comb; Pro stainless steel receiver; spiral fluted bolt; aluminum bolt handle; 5/8"-24 muzzle threads and a Cerakote finish. Includes Recoil Hawg muzzle brake.