Rosco Manufacturing K9 13.95" 5.56 NATO Mid‑Length Gas Barrel – Black Melonite Finish
Upgrade your AR‑15 platform with the premium Rosco Manufacturing K9 barrel. Engineered for 5.56 NATO chambers, this 13.95‑inch mid‑length gas barrel delivers a perfect balance of reliability, accuracy, and durability for tactical, competition, and recreational shooting.
Key Features & Benefits
- Precision‑Machined 13.95‑inch Barrel – Optimized length for a mid‑length gas system, providing smoother recoil impulse and reduced muzzle rise.
- Melonite Finish – A proprietary, hard‑chrome‑like coating that offers exceptional corrosion resistance and a lifespan far beyond standard chrome‑lined barrels.
- Black Anodized Exterior – Sleek, low‑profile finish that resists wear and matches any AR‑15 build aesthetic.
- Mid‑Length Gas System Compatibility – Includes a matching 7‑M mid‑length gas tube (part #K9-1395-HY-THEDON-556) for a complete, ready‑to‑install package.
- Superior Thread Quality – 1/2‑in‑28 TPI, right‑hand thread with a 0.386‑inch pitch, ensuring a perfect fit with standard AR‑15 uppers.
- Enhanced Accuracy – Tight tolerances and a free‑float design promote consistent shot placement out to 500 yards.
- Durable Construction – The K9’s reinforced chamber and throat handle high‑pressure loads with minimal wear.
Technical Specifications
| Manufacturer | Rosso Manufacturing |
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| Model | K9 13.95" |
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| Caliber | 5.56 NATO |
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| Barrel Length | 13.95 inches (355 mm) |
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| Gas System | Mid‑Length (7‑M Gas Tube Included) |
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| Finish | Melonite with Black Anodized Exterior |
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| Thread Pattern | 1/2‑in‑28 TPI, Right‑Hand |
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| Compatible Platforms | AR‑15 rifles, AR‑15 style uppers |
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| UPC | 850039693090 |
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Why Choose Rosco Manufacturing K9?
When it comes to building a reliable AR‑15, the barrel is the heart of the system. The Rosco K9 barrel stands out because it combines a mid‑length gas system—which offers smoother operation and less wear on the bolt carrier group—with a Melonite coating that virtually eliminates rust and extends barrel life. Whether you’re a seasoned competition shooter seeking pinpoint accuracy, a law‑enforcement professional demanding consistent performance, or an enthusiast looking for a robust upgrade, the K9 delivers.
Installation & Compatibility
Designed to fit standard AR‑15 uppers, the K9 barrel installs easily using a torque wrench and proper headspace tools. The included 7‑M mid‑length gas tube ensures a perfect match for the barrel’s gas port, eliminating the guesswork of aftermarket tube sizing. For optimal results, pair this barrel with a quality hand‑guard, bolt carrier group, and a compatible muzzle device.
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Upgrade your AR‑15 with the Rosco Manufacturing K9 13.95" 5.56 NATO barrel, featuring a Melonite finish, black anodized exterior, and a complete mid‑length gas system kit. Engineered for accuracy, reliability, and longevity, this barrel is the ideal choice for tactical, competition, and recreational shooters.
Ready to ship – each barrel arrives packaged with the matching 7‑M mid‑length gas tube, ensuring you have everything needed for a quick, hassle‑free installation.
Boost your rifle’s performance today with the Rosco K9 barrel – the ultimate blend of strength, precision, and finish.
