Centurion Arms MK12 18″ 416R Stainless 1:7 1/2-28 5.56 Barrel

Centurion Arms MK12 18″ 416R Stainless 1:7 1/2-28 5.56 Barrel


Out of stock

Want to be notified when this product is back in stock?


Accurate and extremely durable, these MK12 barrels will keep you in the fight when needed most.


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. Centurion Arms 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. These barrels will use a .750 gas block, with a rifle length gas tube. They are threaded in 1/2-28 allowing you to use most common suppressors or muzzle devices.



Material: 416R Stainless

Barrel extension: M4 Feed Ramps

Chamber: Optimized for use with MK262 (Black Hills 77gr equivalent)

Twist: 1:7

Length: 18″

Thread Pitch: 1/2-28

Weight: 2 lbs 6.3 oz

Additional information

Weight 2.394 oz
Finish Bead Blasted Stainless
Barrel Profile Medium
Gas System Length Rifle
Gas Block Journal 0.750
Barrel Length (inches) 18
Barrel Chamber 5.56 NATO
Twist Rate 1-7
Muzzle Thread Pattern 1/2×28
Weight 2.8 lbs
Dimensions 22 × 3.5 × 3.5 in


There are no reviews yet.

Be the first to review “Centurion Arms MK12 18″ 416R Stainless 1:7 1/2-28 5.56 Barrel”

Your email address will not be published. Required fields are marked *

Post comment

You may also like…