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Rosco Manufacturing K9 Greenline 5.56 Tactical Rifle Barrel
List: $215.00 $193.50 Save 10%
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Most Helpful Negative Review Nice but heavy
Excellent quality, fit, and finish. But heavy! Heavier than BA Hanson and SOLGW.
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accurate, well gassed barrel

by Hotdogjr, Verified Owner from MD, United States Written on October 18, 2026
Barrel looks good, comes dimpled for the gas block. Put 55 rds through it sighting in a 1-6 lpvo. Printed a .9 inch 5 shot group at 50yds with winchester service grade 55 gr. A sprinco blue spring and h3 buffer ejects brass at 4 o'clock using various m193 spec ammo. I will swap out for an h2 or h1 buffer to shoot pmc bronze reliably. I like the barrel profile(it's heavy) and it came with a gas tube.
Would recommend: Yes
Was it helpful to you? Yes | No

Fantastic Barrel.

by crm762, Verified Owner from AR, United States Written on September 19, 2026
This is a good barrel. It’s accurate and helps with balance of the rifle. For handguard length 13 inch works really well. I use this as a DMR barrel out to 850 yards. I do recommend this barrel to others.
Would recommend: Yes
Was it helpful to you? Yes | No

perfect barrel

by Micah Powers, Verified Owner from AL, United States Written on February 27, 2025
Pair this with my blackout keymo hybrid to get an exact 16” pin and weld
Would recommend: Yes
Was it helpful to you? Yes | No

great barrel

by Mike D, Verified Owner from GA, United States Written on September 28, 2024
Great barrel for the $$$ was MOA accurate out of the box for me, my wife and friend were in the 2 MOA mark. the finish is good and adequate quality, I will purchase more of these in the future and will be recommending to people looking to make budget friendly builds
this is my first non BCM or Geissele 5.56 barrel and am very impressed
Pros:
  • cost
  • taper profile barrel
Cons:
  • heavier then other profile barrels
Best Used for:
  • 2A
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.