16 in 5:56 1:9 4150 M4 Profile Barrel w/ 45 degree feedramps (Chrome & Phos)

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The classic Stag AR-15 M4 profile barrel chambered in 5.56 is setting the new standard for barrels. Coming it at 16 inches in length with a carbine length length gas system and tried and true Chrome lining and Phosphate coating, this barrel will give you years of service in your next rifle build or as a replacement barrel for your existing AR 15.


Caliber: 5.56 NATO | .223

Length: 16"

Diameter at the gas port: .750"

Barrel Threading: 1/2x28

Barrel Profile: M4 Profile

Barrel Material: 4150 Chrome Moly Vanadium

Twist Rate: 1/9

Bore and Barrel Lining: Chrome

Barrel Coating: Phosphate

Gas System: Carbine-Length Direct Impingement

SKU: STAG400171


Q: Will this work with my upper receiver?

A: The barrel will work with any mil-spec upper receiver.

Q: Do you provide instructions on how to install the barrel?

A: Unfortunately we don't provide directions on how to install a barrel and recommend that it be installed by a gunsmith to prevent damage to the rifle.

Q: Do I have to purchase a matched bolt to my barrel?

A: With AR-15's as long as you are using the proper bolt for the caliber you do not need to match a bolt to the barrel.



1 Review

  • 5
    Stag Arms Barrel

    Posted by Steve on 28th Jan 2021

    I've been using Stag Arms, firearms and parts for many years. No issues and i'm more than satisfied with the quality.