**PLEASE NOTE- MK12 barrels come in blasted stainless finish. You may choose a Cerakote finish ONLY with purchase of pinned gas block and barrel nut (or with accompanying CMR Handguard purchase. We will assemble and then Cerakote, so as to avoid scratching the finish during assembly.**
**Muzzle devices come with barrel separately unless you also choose a barrel nut (or order a CMR rail with your order, which includes barrel nut) and pinned gas block, in which case we will assemble for you.**
These are Crane Spec. MK12 barrels. These barrels are the result of tens of thousands of dollars in development done by the U.S. government to give our Special Operations guys the best weapon system they can have. We have spoken with many riflemen who have used these barrels and carried them in combat and have found unanimous satisfaction with their reliability and accuracy.
Material: 416R Stainless
Barrel extension: M4 feed ramps
Chamber: optimized for use with MK262 (Black Hills 77gr equivalent)
Twist: 1 in 7 right hand
Contour: for use with OPS inc.
Length: 18 in and threaded 1/2x28 for use with most common muzzle devices
Weight: 2 lbs 6.3 oz
*****Centurion Arms barrels require no further break in*****
***Requires gunsmith installation