AoA 5.56 NATO 16″ Government Profile Barrel



Availability: In stock

AoA 5.56 NATO 16" Govt. Profile Barrel

100% Made in the USA

Our 5.56 NATO 16" Government profile barrel is machined from 4150 Chrome Moly Vanadium (CMV) bar stock, M4 extension and feed ramps, and features a QPQ Nitride Corrosion Resistant Finish.  The M4 Extension and barrel are independently coated to ensure long lasting torque values.  This 5.56 NATO 16" barrel is configured with a mid-length gas system, and accepts a .750 gas block.

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Arm or Ally branded products are manufactured in the same facilities and to the same standards as many popular, high-end brands.  Our promise to you is a high-quality product at a more affordable price. 100% American made products, backed by the same defect-free warranty as every other product we offer.

SKU AOA556015M
Manufacturer Leading U.S. Manufacturer
Caliber 5.56 NATO
Platform AR15
Finish QPQ Nitride
Gas System Mid-Length; .750 Diameter
Twist 1:7 inches
Material 4150 CMV
Muzzle Threads 1/2 x 28 TPI

Arm or Ally is a stocking dealer for all Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, CMC Triggers, HIPERFIRE and named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!  See our growing inventory of AR Parts, and Reloading Components.

Weight 33 oz
Dimensions 10 × 2 × 2 in
Barrel Length


Gas Block Diameter


Gas System


Muzzle Thread

1/2 x 28


5.56 NATO

Barrel Finish

CPQ Corrosion Resistance


Arm or Ally


4150 Chrome Moly Vanadium



Twist Rate


Part Type

Barrel, Upper Receiver Parts

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