11.5" 5.56 NATO 1:7 Twist 4150V Black Nitride Carbine Barrel - 1101-0201-003
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.
- Best Value for the Money
| Weight | 24 oz |
|---|---|
| Dimensions | 13.5 × 3 × 3 in |
| Finish | Nitride / Melonite |
| Barrel Profile | M4 |
| Cartridge Compatibility | 5.56 NATO |
| Gas Block Journal | 0.75 |
| Barrel Length | 11.5 |
| Gas System Length | Carbine |
| Platform | AR-15 |
| Twist Rate | 1:7 |
| Muzzle Thread Pattern | 1/2×28 |
| MPN | 1101-0201-003 |
| UPC | 999998211 |
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
US
Hidden Gem (NBS) Barrel
11.5" 5.56 NATO 1:7 Twist 4150V Black Nitride Carbine Barrel - 1101-0201-003 sold under NBS brand... who originally made this barrel before being labeled an NBS brand to be sold under? AI Response: - Most NBS barrels in this spec range are sourced from Rosco Manufacturing or Ballistic Advantage. - Both companies produce 4150 CMV (sometimes listed as 4150V) nitride barrels in 11.5" carbine gas, 1:7 twist — and both are known OEM suppliers for house brands. - Rosco in particular has a reputation for supplying “white label” barrels to resellers, and their 11.5" nitride carbine barrel matches the NBS spec sheet almost exactly. Most Probable Answer The NBS 11.5" 5.56 NATO 4150V Black Nitride Carbine Barrel (SKU 1101-0201-003) was originally manufactured by Rosco Manufacturing, then rebranded under the NBS label for sale through AR15Discounts. Ballistic Advantage is another possible source, but Rosco is the most consistent OEM behind NBS-branded barrels in this configuration.
United StatesHidden Gem (NBS) Barrel
Just bought this barrel... for those that are looking to buy one, I did some research and found out a few things. Question to AI: 11.5" 5.56 NATO 1:7 Twist 4150V Black Nitride Carbine Barrel - 1101-0201-003 sold under NBS brand... who originally made this barrel before being labeled an NBS brand to be sold under. Answer: (Brand) - NBS is a house brand used by AR15Discounts (and affiliated retailers). - They don’t manufacture barrels themselves — instead, they relabel barrels made by established OEMs. - The SKU you mentioned (1101-0201-003, 11.5" 5.56 NATO, 4150V, Black Nitride, Carbine Gas, 1:7 twist) is one of their common offerings. Likely OEM Manufacturer - Most NBS barrels in this spec range are sourced from Rosco Manufacturing or Ballistic Advantage. - Both companies produce 4150 CMV (sometimes listed as 4150V) nitride barrels in 11.5" carbine gas, 1:7 twist — and both are known OEM suppliers for house brands. - Rosco in particular has a reputation for supplying “white label” barrels to resellers, and their 11.5" nitride carbine barrel matches the NBS spec sheet almost exactly. Most Probable Answer The NBS 11.5" 5.56 NATO 4150V Black Nitride Carbine Barrel (SKU 1101-0201-003) was originally manufactured by Rosco Manufacturing, then rebranded under the NBS label for sale through AR15Discounts. Ballistic Advantage is another possible source, but Rosco is the most consistent OEM behind NBS-branded barrels in this configuration. Question to AI: Rosco Manufacturing Bloodline 11.5" 5.56 M4 1:7 Twist Black Nitride Carbine Barrel - BL-115-M4-556-7-C vs 11.5" 5.56 NATO 1:7 Twist 4150V Black Nitride Carbine Barrel - 1101-0201-003 Answer: Direct Answer: The Rosco Bloodline 11.5" barrel (BL-115-M4-556-7-C) and the NBS 11.5" 4150V barrel (1101-0201-003) share nearly identical specifications (11.5", 5.56 NATO, 1:7 twist, carbine gas, 4150 CMV steel, black nitride finish). The key difference is that the Rosco Bloodline is branded and marketed directly by Rosco Manufacturing, while the NBS barrel is a private-label product sold by AR15Discounts under the NBS brand, often sourced from Rosco or similar OEMs. Rosco Bloodline 11.5" Barrel (BL-115-M4-556-7-C) - Manufacturer: Rosco Manufacturing - Material: 4150 CMV (chrome moly vanadium) steel - Finish: QPQ black nitride - Twist Rate: 1:7 - Gas System: Carbine-length - Profile: M4 contour - Design Intent: Built in-house by Rosco, optimized for SBR/pistol builds, tuned dwell time for suppressed/unsuppressed use. - Reputation: Known for consistent gas port sizing and durability; Rosco barrels are widely respected in the AR community. NBS 11.5" Barrel (1101-0201-003) - Brand: NBS (house brand of AR15Discounts) - Material: 4150V (variant of CMV steel) - Finish: Black nitride - Twist Rate: 1:7 - Gas System: Carbine-length - Profile: M4 contour (similar to Rosco) - Origin: AR15Discounts states they work with “a wide variety of machine shops and barrel manufacturers” and private-label barrels under NBS. - Likely OEM: Rosco Manufacturing is the most probable source, given the identical specs and AR15Discounts’ history of relabeling Rosco barrels. So, take it for what you will. Hope this helps! Happy Thanksgiving ya'll
USNot bad
Light and tough
USPerfect
ACCURACY at its best!
US11.5 AR15 barrel
Looked around at lots of vendors. Was trying to locate one that was in stock and the price range that I could work with. This barrel fits both requirements. Installed on my upper and i am quite satisfied
