FN 36423 AR-15 Hammer Forged 18" Rifle Barrel

$315.29 Out of stock

FN's hammer-forged 5.56 NATO 18" rifle barrel features chrome-lined bore, M4 feed ramps, and manganese phosphate finish for durability and reliability.

Fits: AR-15

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FN 36423 AR-15 Rifle Barrel

FN's commitment to barrel excellence is evident in every aspect of this 18" rifle-length barrel. Built using the same proprietary Chrome Molybdenum Vanadium steel that FN employs in its machine gun barrels, this barrel is engineered to withstand sustained high-volume fire and demanding conditions.

Manufacturing Excellence

Cold Hammer Forging Process

  • Each barrel is hammer forged from premium Chrome Molybdenum Vanadium steel
  • Magnetic particle testing ensures freedom from microstresses and material flaws
  • Consistent quality control results in reliable performance across every barrel

Durability Features

  • Chrome-lined bore and chamber resist corrosion and heat erosion, extending barrel life
  • M4-style feed ramps and barrel extension ensure consistent feeding and reliable chambering
  • Manganese phosphate finish provides external corrosion and oxidation resistance
  • Matte black appearance maintains a professional, tactical aesthetic

Specifications

  • Caliber: 5.56 NATO
  • Length: 18 inches
  • Gas system: Rifle length
  • Finish: Matte black manganese phosphate
  • Chamber: Chrome lined

This barrel represents FN's military-grade engineering applied to the civilian AR-15 platform, delivering the reliability and longevity serious shooters demand.

Attributes

Barrel Description: Chrome-Lined
Barrel Type: Rifle Length
Bore Type: Chrome Lined
Finish: Manganese Phosphate
Length: 18"
Model: AR-15