Due to the MK12's extended .750" profile forward of the gas block, significant marring of any paint/Cerakote/finish will occur from installation/removal of the gas block (whether pinned or set screw), no matter the finish (as the original MK12's were.)
PINNED AND CERAKOTED OPTION AVAILABLE HERE
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. Best option for long-range, high-precision shooting.
Specs:
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.
Gas Journal: .750" with gas block alignment notch for use with our .750" or MK12 tabbed gas blocks (non-tabbed gas blocks will still work)
Gas System: Midlength
Lengths: 16in and threaded 1/2x28 for use with most common muzzle devices
Weight: 2lbs 2.9oz
Gas Port: .076
**THESE SERVE AS HBAR BARRELS**
*** We recommend gunsmith installation for all of our parts. We cannot warranty items damaged by improper installation.
