FN America 16″ Hammer Forged Barrel, Mid Length Gas System – 5.56/.223


Out of stock

Get notified when this product is back in stock

SKU: 36422 UPC: 845737005139

Product Description

Years of experience producing barrels for the United States military has lead to some of the longest-lived, most accurate rifle barrels available for the AR-15. FN, producer of the world’s most battle-proven firearms cold hammer forges high-strength 41V50 chrome moly vanadium barrel blanks to produce rifling and contour in the same go for exceptional repeatability and incredible durability. Each barrel is individually magnetic particle inspected to be free of flaws before having the bore and chrome lined to the same standard as military rifles. Add in a matte-black manganese phosphate finish to protect the outside of the barrel from corrosion and you have a barrel that will outlast most shooters ammo budgets for years to come.


  • Cold hammer-forged 41V50 chrome moly vanadium steel
  • Individually magnetic particle inspected
  • Chrome-lined bore and chamber
  • Durable manganese phosphate finish
  • Balanced Government contoured barrel
  • Smooth shooting mid-length gas system
  • Standard 1/2×28 threading

FN America is a subsidiary of FN Herstal, a global company with a proud, long-standing heritage. They are committed to providing highest quality, dependable, innovative firearms. With an over 127-year history, Fabrique Nationale stands at the cutting edge of commercial, law enforcement, and military weapons. Every one of FN America’s firearms are hand tested before leaving the factory to ensure reliability and make sure that the product you receive will work when you need it to.


Barrel Coating: Manganese Phosphate
Barrel Contour: Government
Barrel Length: 16″
Barrel Lining: Chrome
Barrel Material: 41V50 Chrome Moly Vanadium Steel
Brand: FN America
Caliber Gauge: 5.56 NATO
Feed Ramps: M4
Gas Seat Diameter: .750
Gas System Length: Mid-Length
Platform: AR-15
Thread Pattern: 1/2 X 28
Twist Rate: 1:7




FN America

Technical Information

Color / Pattern



5.56 NATO / .223 Remington



Thread Pitch

1/2 x 28


4150 Chrome Moly Vanadium


Manganese Phosphate

Gas Block Size


Firearm Compatibility


Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit www.P65Warnings.ca.gov