Product Description
5.56 NATO, 20" 4150 Parkerized Heavy Barrel, 1:9 Twist, Rifle Length Gas System. This AR-15 20” Heavy Parkerized 5.56 NATO barrel has a Rifle length gas system with a 1:9 twist. This 5.56 NATO barrel is made from the finest 4150 Gun Quality steel and precisely rifled for high accuracy.
100% American-made. Barrels are manufactured from two types of steel:
4150 Gun Quality Steel, Heat Treated to RC 28-32 Hardness, and Stress Relieved.
416 Stainless Steel, Heat Treated to RC 28-32 Hardness, and Stress Relieved.
- SKU:BE556-20P9HF
- Country of Manufacture:United States
- Manufacturer:US Contractor
- Weight:2.3 lbs.
- Length:20”
- Profile:Heavy Barrel
- Twist:1:9
- Finish:Parkerized
- Material:4150 Chrome Moly Vanadium
- Thread Pitch:1/2×28
- Caliber:5.56 NATO
- Feed Ramp:M4
- Flutes:N/A
- Gas System:Rifle Length
- Gas Block :.750
- Platform:AR-15






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