20" 5.56 Heavy Barrel

Current stock: 0


The 20" 5.56 NATO barrel has a military A2 HBAR profile and is the same barrel used on our Model 4 rifle. The barrel has a 1/9 twist. The barrel extension is pre-installed and headspaced.


Caliber: 5.56 NATO | .223

Length: 20"

Diameter at the gas port: .750"

Barrel Threading: 1/2x28

Barrel Profile: A2 heavy barrel (HBAR)

Barrel Material: 4140 Chrome Moly Vanadium

Twist Rate: 1/9

Bore & Barrel Lining: Chrome Lined

Barrel Coating: Manganese phosphate

Gas System: Rifle length direct impingement

SKU: SA400035


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.



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