FN 36423 AR-15 5.56 NATO 18 AR-15 Chrome Moly Vanadium Chrome-Lined Black Phosphate

Name: FN 36423 AR-15 5.56 NATO 18 AR-15 Chrome Moly Vanadium Chrome-Lined Black Phosphate
Brand: BattleHawk Armory
Price: 321.6 USD
Availability: InStock

Sold byBattleHawk Armory•Posted May 18, 2026

Compare prices for FN Hammer Forged AR-15 Barrel 5.56x45mm NATO 18" Government Contour 1:7" Twist Matte Rifle Length Gas Port

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Deal Summary

Currently in stock.
Caliber: 223/5.56
Category: accessory
UPC: 845737005146
SKU: 845737005146
Brand: Fn

Price History

Deal Details

FN AR-15 Hammer-Forged Barrels have a chrome-lined chamber and bore to help resist corrosion and provide heat erosion resistance. There barrel is forged from Chrome Moly Vanadium steel and built for the .750" diameter gas block with 1/2x28" threaded muzzle. It has an M4-style feed ramp and barrel extension for consistent and reliable feeding. This barrel is chambered in 5.56 NATO with a 1:7" twist with a manganese phosphate finish.