Centurion Arms MK12 18 5.56 NATO 1:7 416R Stainless Steel Rifle Length Barrel - MK12B

MK12 Barrel

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.

 

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.

Length: 18 in and threaded 1/2×28 for use with most common muzzle devices

Weight: 2 lbs 6.3 oz

 

*****Centurion Arms barrels require no further break in*****

***Requires gunsmith installation

Weight	38.304 oz
Finish	Machined Stainless
Barrel Profile	Medium
Gas System Length	Rifle
Gas Block Journal	0.75
Barrel Length (inches)	18
Barrel Chamber	5.56 NATO
Platform	AR-15
Twist Rate	1-7
Muzzle Thread Pattern	1/2×28
MPN	MK12B
UPC	6611