Home / Products / Black Rifle Depot / 20" Black Nitride 4150 Steel Heavy Barrel, 5.56 NATO, Rifle Length Gas System
20" Black Nitride 4150 Steel Heavy Barrel, 5.56 NATO, Rifle Length Gas System
Lowest Listed Price
$109.95
MSRP
$109.95
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Updated
Aug 26, 2026
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Specifications
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MPN
1503-B556RHB2017(M)
Description
20" Black Nitride 4150 Steel Heavy Barrel, 5.56 NATO, Rifle Length Gas SystemBuilt for High Performance and Reliability in Every ShotThe 20" Black Nitride 4150 Steel Heavy Barrel chambered in 5.56 NATO offers a high-performance solution for AR-15 rifles, designed to meet the rigorous demands of accuracy and durability. With a rifle-length gas system and a 1:7 twist rate, this barrel is crafted from premium 4150 Chrome Moly Vanadium steel and finished with black nitride for exceptional corrosion resistance and longevity. Every barrel undergoes a 100% inspection process, utilizing CMMs and Air Gauges for precise bore measurements, ensuring consistent performance in any environment.Perfect for long-range precision shooting, competitive target practice, and duty-use AR-15 builds where accuracy, durability, and reliability are key.Key Features:20" Heavy Barrel Profile: Designed for stability and improved accuracy during prolonged shooting5.56 NATO Chamber: Compatible with both 5.56 NATO and .223 Remington ammunitionBlack Nitride Finish: Provides enhanced corrosion resistance and a sleek, durable exterior1:7 Twist Rate: Ideal for stabilizing heavier bullets, enhancing accuracy at longer rangesRifle Length Gas System: Ensures smooth cycling and reduced recoil Specifications:Material: 4150 Chrome Moly VanadiumFinish: Black NitrideLength: 20"Profile: Heavy BarrelTwist Rate: 1:7Thread Pitch: 1/2 x 28Caliber: 5.56 NATOFeed Ramp: M4 FeedrampGas System: Rifle LengthGas Block Diameter: 0.750Weight: 3.39 lbsThis 20" heavy barrel brings enhanced stability and accuracy, providing shooters with a reliable, high-quality barrel that can withstand rigorous use. The black nitride finish not only adds to its durability but also offers an appealing, sleek appearance for any AR-15 build.Upgrade your AR-15 for peak performance with this 20" Black Nitride 4150 Steel Heavy Barrel and experience unmatched accuracy and durability shot after shot.
