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Reviews & Ratings for Rosco Manufacturing Bloodline .300 AAC Blackout Barrel — 8 reviews

(8 reviews)
Rosco Manufacturing Bloodline .300 AAC Blackout Barrel
Rosco Manufacturing Bloodline .300 AAC Blackout Barrel
As Low As $141.57 Save Up to 13%
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Most Helpful Positive Review My new favorite barrel
I recently bought the Rosco 8.2 Bloodline barrel for a 300 blackout pistol build. Barrel is very well made with no visible machine marks and quality matching some and surpassing most more expensive barrels I have used. Every dimension from gas port to extension diameter were right on. An 11 degree c...
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Most Helpful Negative Review Five months later.
Long story short, back in January I ordered all of the parts to build a new AR Pistol. This is 7th or 8th AR that I have built, so I'm really not all that inexperienced. I decided to go with a Rosco barrel because of the reputation for quality. When the barrel arrived it came neatly packaged, and th...
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Great deal from a great company

by Rich, Verified Owner from CT, United States Written on March 30, 2025
What can I say that hasn’t been said, OP is one of the few companies that will deal with commie CT- customer service and prices are great, barrel is exactly as expected.
Would recommend: Yes
1 of 1 found the following review helpful.
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great barrel

by neb grendel, Verified Owner from NE, United States Written on December 5, 2024
Roscoe makes a good barrel. This is a great hard use barrel that will last a lomg time. Seems pretty accurate.
Pros:
  • Features for Price
Cons:
  • None
Best Used for:
  • hard use
Would recommend: Yes
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I’m impressed

by Jeff, from GA, United States Written on March 9, 2024
Firstly I was very impressed with the packaging. The barrel came in a box within a box and was completely protected by foam surrounding the barrel. The fit and finish is flawless. A check with go, no-go gauges proved the chamber. I also like the gas block dimple which speeds up installation. Although I haven’t shot this build yet I will update this review if necessary.
Pros:
  • Fit and finish
Cons:
  • None
Best Used for:
  • CQB and home defense
Would recommend: Yes
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Great Barrel

by Dan, Verified Owner from FL, United States Written on February 18, 2024
Barrel is nicely finished . Fired great ! For the price you can’t bet it ! Fits nice !
Pros:
  • Looks good
Cons:
  • None
Best Used for:
  • home protection
Would recommend: Yes
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Missed the mark

by Easystreet, Verified Owner from GA, United States Written on July 30, 2020
Misaligned dimple job caused this barrel to be badley under gassed. Operates like bolt rifle shooting supers or subs both suppressed and unsuppressed. Looking closely at gas tube from above it is slightly angle from gas block to upper receiver. I discovered that the dimple at bottom of barrel is off of the 6 o'clock center line and causes the gas block screw to torque the gas block off of the gas port when tightened. Instead of hassling with the return process I'm waiting for a clamp style gas block to arrive. As other reviewers have mentioned qualty control is a Rosco issue. A product with potentially great quality is being sabotaged by sketchy QC. BTW this is my second Rosco barrel and the first has been 100%. This one unfortunately has been a dissapointment so far. A lttle less time on insta and more attention to product detail might help these guys.
Would recommend: No
6 of 7 found the following review helpful.
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it just works!

by squirtlocker, from AZ, United States Written on June 6, 2020
10.5 300 using aero enhanced upperand gas tube, bcm gas block. No issues suppressed or unsuppressed. 500 rounds no problem all factory new ammo subs and supers. About 1 moa at 100 using dot from bench. With scope maybe sub moa
Would recommend: Yes
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