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Rosco Manufacturing Bloodline 5.56 AR-15 Barrel - Carbine - Government - 10.5"

Manufactured by Rosco Manufacturing
SKU: BL-105-M4-556-7-C
MPN: BL-105-M4-556-7-C
Manufactured by Rosco Manufacturing
12 Reviews
$144.90

In Stock

Non-FFL orders will ship within 1 business day. FFL orders will ship within 5 business days once transfer details are provided.

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Details

Details

Note: this barrel is under 16 inches in length. The National Firearms Act regulates configurations assembled with barrels this short -- know the NFA laws in your state before purchasing.

The AR-15 is by far the most dominant carbine on the market, and simply building 'good enough' components doesn't cut it. The Bloodline series of barrels was designed and built entirely in-house by Rosco Manufacturing to outperform the competition and outlast it too.

Features:

  • 10.5" barrel, Government contour
  • Chambered in 5.56 NATO, 1:7 twist
  • 41V50 chrome moly vanadium steel
  • Salt bath nitride finish, nitride-finished M4 barrel extension
  • carbine-length gas system
  • .750" gas seat diameter
  • Threaded 1/2x28, 11-degree crown
  • 19.28 oz weight


This barrel is machined to a balanced government contour, offering a solid balance between rigidity and weight. The reliable carbine-length gas system ensures the rifle gets the right amount of gas to cycle even in adverse conditions, and the 1:7 twist rate is perfect for heavier, precision-oriented cartridges while remaining thoroughly functional with popular, less expensive bullet weights.

Rosco Manufacturing produces every barrel entirely in-house from raw steel, controlling every step of the process. Based in Central Falls, Rhode Island, every component is 100% made in America, by Americans.

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Specifications

Barrel CoatingSalt Bath Nitride
Barrel ContourGovernment
Barrel Length10.5
Barrel LiningSalt Bath Nitride
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandRosco Manufacturing
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
PlatformAR-15
Thread Pattern1/2 X 28
Twist Rate1:7
Weight19.28 Oz.
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

12 reviews

4.9
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Roscoe AR-15 pistol barrel

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The gunsmith that installed the barrel thinks highly of that brand of barrel

Quality

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This barrel has better quality than other barrels that I have paid twice the amount for. Great price!!!! Also, I like that it has the dimple under the bottom of the barrel to align and keep the gas block in place.

Perfect!

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Worked as it should with no issues. Solid product!

Superb quality / great price!

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The quality is top notch. Packaging is A+ and like always, quick shipping from PA!

High Quality That Won't Break the Bank

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The first time I ordered Rosco, I was shocked at the quality and how great everything looked. Many rounds later, I'm still impressed. They hold up and shoot better (and look better) than barrels three times as expensive. My go too for every build I have done since. (Side note- Multiple Bloodline Barrels I tried were VERY loose in my Vltor MUR upper- to the point that I didn't build that paticular rifle with a Rosco. Every other upper has been snug and fit great). Fast shipping and great service from PA as usual.

Barrel

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Great deal on what looks like a fine barrel have not used it yet but by the quality look should be fine. Fast delivery good price.

Great barrel. Great supplier

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Everything you’d expect from a top notch barrel at nearly half the price. Plus with Primary Arms amazing sales, got it at extra 10% off. Ordered on a Thursday, delivered on a Saturday. Standard shipping. In the midst of these COVID times and crazy logistics, Primary is more dependable and as fast as Amazon. Customer for life!

Rosco Barrel

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If ya know, ya know. If you’re spending three times this on “higher end” namebrand barrels, you’re doing me a favor by keeping these ones in stock...

Barrel too big for gas block by .001"

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Checked with 2 different calipers and the diameter of where the gas block goes on barrel was .751 and my gas block measured at exactly .750 there was no way it would go on. I sanded the inside of the gas block with 600 grit for quite some time and then still had to press it on with force. Other than that it is machined and finished very nice. I have not fired it yet.

I thought it was a joke...

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At the price they have it, I thought it would be a beater barrel. I’m going to tell you the hype is real! This barrel is a straight shooter and has features that you only get in top of the line offerings. Dimple for gas block, precision sized gas port, polished chamber, the machining marks are smooth. With the right ammo this is sub MOA.