FN America 5.56 Complete AR-15 Upper Receiver - Fixed Front Sight - 10.5"

Manufactured by FN America
SKU: 36329-01
MPN: 36329-01
Manufactured by FN America
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Note: This barreled upper receiver assembly has a barrel length under 16” and is therefore subject to all NFA rules and regulations. Know your local laws before purchasing.

The FN America AR-15 Complete Upper is a premium M4 style upper that lives up to the battle tested reputation of FN America. It features a durable and reliable 4150 chrome moly vanadium barrel and a black manganese phosphate finish. This barrel is chambered in 5.56 NATO/.223 Remington with a fixed front sight and 1/2”x28 threaded barrel for optimal performance and functionality. It features M-16 bolt carrier group constructed from pure Carpenter 158 steel making the bolt stronger and more fatigue resistant. It boasts a M4 handguard treated with type III hard coat anodized finish to ensure it can withstand the most severe abuse and provide maximum corrosion resistance. The 5.56 AR-15 upper features a M4 feed ramp to promote consistent and reliable feeding. FN’s are High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure they are free of micro-stresses, cracks and flaws to ensure the quality and consistency of each barrel. In addition, to the rigorous standards and specifications, FN has years of battle proven experience. They produce some of the longest-lived, most accurate rifle barrels for the United States military with exceptional repeatability and incredible durability. The FN America AR-15 Complete Upper is no exception and a great option for any AR build.

  • Manufactured by FN America
  • 10.5-inch steel barrel 
  • 7075-T6 aluminum
  • 1/2" x 28 threaded muzzle
  • M4-style feed ramp 
  • 5.56 NATO
  • M4 heat shield
  • Fixed front sight
  • Type III hard coat anodize
  • Mil-Spec charging handle
  • M-16 BCG, 158 Carpenter steel

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 ContourMedium
Barrel Length10.5
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandFN America
Caliber Gauge5.56 NATO
Gas System LengthCarbine
Gas System TypeDirect Impingement
HandguardCarbine Length Drop-In Handguard
Muzzle DeviceA2 Flash Hider
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.

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