FN 36421 AR-15 5.56x45mm NATO 16 in Carbine Length Gas System, Black Cold Hammer Forged Chrome Lined, Rifle Barrel

FN AR15 barrels are hammer forged using the same proprietary highgrade Chrome MolyVenadium steel used in FNs venerable machinegun barrels produced to handle the punishment of sustained fullyautomatic fire. After forging, each barrel is Magnetic Particle tested to ensure that it is free of microstresses or flaws, resulting in consistency and quality in every barrel shipped from the factory. The bore and chamber are chrome lined to help resist corrosion and provide resistance to heat erosion which greatly improves barrel life and reliable chambering/extraction. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation.

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Barrel Features:	Chrome-Lined
Caliber:	5.56x45mm NATO
Finish:	Manganese Phosphate
Barrel Type:	Carbine Length
Model:	AR-15
Material:	Chrome Moly Vanadium Steel
Color:	Black
Firearm Fit:	AR-15
Length Range:	16"-20"
Length:	16"