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Rosco Manufacturing Bloodline 5.56 NATO Barrel
As Low As $132.30 Save 10%
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Most Helpful Positive Review 11.5 in Bloodline barrel
Excellent barrel.... Used for pistol build. Perfect balance, perfect length! This barrel shoots great from the start. Matched with Aero Precision upper and 12 inch Aero fo forearm...added a Stoner linear compensator...love this barrel!
Most Helpful Negative Review may have got a dud
I am very displeased with this barrel. I bought an 11.5" 1:7" twist, 5.56×45mm 4150cmv nitride, with carbine length system and put 1500rnds through it and am very displeased with the quality. I have spent over double the value in ammo on this barrel and still was not able to get this thing to contin...
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Quility barrel for the money in an increasingly hard to find size

by deprazor, Verified Owner from FL, United States Written on November 22, 2025
Building a rifle can get boring. So you try new things like building a pistol. Sometimes you don't want to build the same sized run of the mill pistol. So i did some research and decided to go with a 12" barrel. I watch a lot of YouTube, one of my favorite channels is the Garand thumb channel. He shoots all the time, thousands of rounds. He routinely uses Rosco barrels for their quality and price. So I got one that was affordabley priced here on Opticsplanet.com of course. The quality is spot on. The only gripe I have with this purchase is that the gas tube and pin were not included setting my build time back another seven days. I ordered the Rosco tube and it matched perfectly. The tube is quality but priced on the high end in my opinion. Maybe Rosco can work something out with Opticsplanet.com on the price front.
Would recommend: Yes
Was it helpful to you? Yes | No

Rosco 11.5" Bloodline

by johnchip, Verified Owner from CT, United States Written on June 7, 2025
I am a big fan of the Rosco Bloodline 11.5" and was really excited when it came back in stock. I bought it as soon as I got the notification. Rosco makes really good barrels. I love how they come with a dimple for proper gas block alignment. The finish is amazing. Even the box it comes in drips quality. For an 11.5 its pretty accurate. I highly recommend any Rosco barrel especially this 11.5.
Would recommend: Yes
Was it helpful to you? Yes | No

awesome barrel

by johnchip, Verified Owner from CT, United States Written on April 9, 2025
Rosco Manufacturing is my new go-to barrel company when building new uppers. I use to buy strictly Ballistic Advantage but after having such a great experience with the mid length 16" bloodline, I decided to build a 11.5" and its now one of my favorite uppers. I liked it so much I built another bit more higher ene 11.5 upper that is dedicatedly suppressed. Both 11.5s run flawless and are very accurate. I love the fact that they come pre dimpled and the packaging is top tier. You can tell Rosco cares about quality. I highly recommend these barrels and will definitely be buying more on the future.
Would recommend: Yes
1 of 1 found the following review helpful.
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11.5 Bloodline 5.56 Barrel

by johnchip, Verified Owner from CT, United States Written on March 29, 2025
Rosco Manufacturing makes some really high quality barrels for a reasonable price. I typically buy Ballistic Advantage barrels but decided to give Rosco a try and wow I am impressed. Love how it is pre-dimpled and the packaging is top tier. You can tell they care about their product. Way better than getting a bubble wrapped barrel. I got nothing but good things to say about this barrel. The 11.5" upper I built with it is pure perfection. Highly recommend these barrels.
Would recommend: Yes
Was it helpful to you? Yes | No

Nice barrel!

by BC, Verified Owner from FL, United States Written on February 28, 2025
needs a .75 gas block and carbine length (12.5") gas tube, I dig it!
Pros:
  • sleek
Cons:
  • None
Best Used for:
  • AR-15
Would recommend: Yes
1 of 1 found the following review helpful.
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Feed ramp Issue

by James, Verified Owner from GU, United States Written on February 27, 2025
The 10.5" barrel I have has feeding issues. Tried every magazine I can find and the round would just stop at the tip of the feed ramp. Have to rack it again (force the cartridge) to go inside the chamber. I took it out and upon inspection, it needs to be filed down, add a small ramp on the sharp edges and polish it. I ordered KAK Industries 10.5 barrel and works like a charm. I'll keep this barrel and do some work to it and build with it on another day. I should've stuck with Faxon barrels, all my barrels are either Faxon or Kak Industries.
Pros:
  • Price
Cons:
  • Bad Feed Ramps
Best Used for:
  • nothing
Would recommend: No
1 of 1 found the following review helpful.
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14.5" 5.56 Mid Length For $89.99

by NATHAN CUNNINGHAM, from PA, United States Written on May 17, 2024
This is the first Rosco barrel ive owned and I got it for $89.99 before taxes & shipping. I used this to build a 2-Stamp ADM UIC SBR build and I have to saw this barrel worked perfectly with ADM UR,LR & 13.5" LW handgurd. Also installed TriggerTech Diamond Single Stage, MidWest Ind/Radian Nitride enhanced BCG, BAD Elite Ambi Safety, Precision Armament 556 Hypertap, Railscales grip & scales, JP enhanced bolt & Silent captured spring system & Aero Adj Gas Block, FCD dimpled dust cover, FA & Mag Release, Radian Raptor Charging Handle. Barrel looks machined perfectly and finish is flawless for the price and looks alot better made than Ballistic Advantage who uses to be my go to for barrels but now its gonna be Rosco Mfg
Pros:
  • Nitride Finish
  • Build & Price
Cons:
  • None for me
Best Used for:
  • AR15 platform
Would recommend: Yes
2 of 2 found the following review helpful.
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great product

by wej, Verified Owner from TX, United States Written on April 26, 2024
Pretty decent barrel for the price. Purchased this barrel due to having an older version that had to big of a gas port, causing my gun to be way over gassed when shooting suppressed. New barrel has a perfect ejection pattern now.
Pros:
  • Evering thing about it.
Cons:
  • None
Would recommend: Yes
1 of 1 found the following review helpful.
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highly recommend

by wej, Verified Owner from TX, United States Written on April 17, 2024
I have used these barrels for years and they haven’t let me down. They have the correct opening for suppressor use.
Pros:
  • Everything
Cons:
  • None
Would recommend: Yes
1 of 1 found the following review helpful.
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highly recommend

by wej, Verified Owner from TX, United States Written on April 17, 2024
I have used these barrels for years and they haven’t let me down. They have the correct opening for suppressor use.
Pros:
  • Everything
Cons:
  • None
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No
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