FN America 5.56 Button Cut Carbine Gas Government AR-15 Barrel - 16"

Manufactured by FN America
SKU: 20-100039
MPN: 20-100039
Manufactured by FN America
3 Reviews
$228.78 $279.00

In Stock

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FN America’s 5.56x45mm AR-15 Barrel is a high-quality upgrade to any AR build. The 16” barrel features M16 styling with mil-spec steel construction and a black manganese phosphate finish. The carbine length barrel has a chrome lined chamber and M4 style feed ramps compatible with 5.56x45mm and .223 Remington that help extend barrel life while providing consistent, reliable feeding while shooting. It is threaded in 1/2x28 and has a 1:7 RH twist rate.

Note: It is recommended that all FN America parts be installed by a qualified and trained gunsmith.

  • 16” barrel chambered in 5.56 / .223
  • Machined from mil-spec steel
  • Chrome lined chamber
  • M4 style feed ramps
  • Carbine length gas system
  • Threaded 1/2x28
  • Black Manganese Phosphate finish

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.
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Barrel CoatingManganese Phosphate
Barrel Length16
Barrel MaterialSteel
BrandFN America
Caliber Gauge5.56 NATO
Feed RampsM4
Gas System LengthCarbine
Thread Pattern1/2 X 28
Twist Rate1:7
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 go to www.P65Warnings.ca.gov.

Ratings & Reviews

3 reviews

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Gas port is smaller than I need.

by -

Gas port is measuring at 0.062 inch.

Great experience

by -

Very fast shipping barrel was packed in sealed bag wish other companies would do same. Fn carbine barrel can't go wrong. Will continue to do business with PA.

Fn barrel enough said.

by -

Have used Fn barrels in the past with zero issues. If you want reliable, tough as nails barrel then you will not be disappointed.