CMMG AR-15 5.56x45mm 16″ Barrel Nitride Finish (55DE10A)

CMMG AR-15 5.56x45mm 16″ Barrel Nitride Finish (55DE10A)


92 in stock

SKU: CMMG55DE10A Categories: ,

CMMG is known for making some of the best AR-15 parts that come in at a great price.  This barrel is no exception, it is a great value for the money.


This barrel is chambered in 5.56x45mm.  This means that it is capable of shooting both .223 Remington, as well as 5.56x45mm NATO ammunition.


The barrel is 16.1” in length, so, you do not have to concern yourself with any NFA issues.


The barrel has the standard M4 style profile.  This barrel has the M203 cut out in the front of the barrel and has a gas journal diameter of 0.750”, which Is standard for an AR-15 barrel


The barrel is finished with a Salt Bath Nitride finish.  The increases both wear and corrosion resistance, giving you a longer service life with.


The barrel has a twist rate of 1:7”.  This twist rate is optimized for the heavier/long .223 projectiles.


The barrel is threaded and has the standard 1/2×28 thread pitch. 


The gas port is drill in the carbine length position.

Additional information

Weight2 lbs
Part #




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