20" Black Nitride 4150 Steel Government Barrel, 5.56 NATO, Rifle Length Gas - 428-B556RGVNT2017(M)
In stock
Here at AR15Discounts.com we work with a wide variety of machine shops and barrel manufacturers. When we come across a barrel maker we like, we will often decide to private label those barrels for resale under the NBS brand. We purchase these barrels in large quantities and then pass the savings on to our customers.
Why buy an NBS Brand Barrel:
- American Made – Sourced from a variety of Tier 1 Manufacturers here in the United States
- Quality Control – All barrels are manufactured under ISO-9001 or better quality standards
- MOA Guarantee – All barrels 16 and longer are guaranteed to hold 1 MOA or better using properly weighted match grade factory ammo and shooting from a rest.
- Hassle Free Returns
- Best Value for the Money
- NBS Limited Lifetime Warranty
| Weight | 54.24 oz |
|---|---|
| Dimensions | 22 × 3 × 3 in |
| Finish | Nitride / Melonite |
| Barrel Profile | Government / SOCOM |
| Gas System Length | Rifle |
| Gas Block Journal | 0.75 |
| Barrel Length (inches) | 20 |
| Barrel Chamber | 5.56 NATO |
| Platform | AR-15 |
| Twist Rate | 1-7 |
| Muzzle Thread Pattern | 1/2×28 |
| MPN | 428-B556RGVNT2017(M) |
| UPC | 428-B556RGVNT2017(M) |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
USmy new build
Just what I was looking for,quality and fast delivery.
USNBS barrels
I’ve used several NBS barrels in custom builds and have been pleased with their fit and finish. Great product for the money!
US
Great Barrel!
Very well worth it. The barrel is a great 20", no issues. I had a harder time just finding a proper F Type front sight base assembly. Does come with one dimple on the bottom side to assist with mount your gas block with the 10/32 set screws.
USGood Budget Barrel
Iv been looking for a cheap 20" barrel to upgrade my 16" anderson upper and this fit the bill. It arrived very fast, the finish is good, fit tight into my anderson reciever. my rifle runs much smoother with the barrels rifle length gas system. Couldn't be any happier
USWonderful
Great experiece overall pleased with everything.
