Description
Elevate your AR-15 build with the precision-engineered 300 BLK 12.5 Barrel, a premium choice for shooters seeking unmatched versatility in the 300 Blackout platform. Crafted from durable 416R stainless steel, this barrel delivers exceptional accuracy and reliability, whether youre running subsonic suppressed loads for stealthy operations or supersonic rounds for extended range performance. Designed for the modern tactical enthusiast, it balances compact maneuverability with optimal ballistics, making it ideal for home defense, hunting, or competitive shooting.
Key Features
Match-Grade Construction: Hand-lapped bore and chamber ensure superior accuracy and consistent grouping, minimizing shooter frustration with sub-MOA potential in the right setup.
Pistol-Length Gas System: Optimized for 300 Blackouts unique pressure curve, reducing recoil and improving follow-up shots while maintaining compatibility with a wide array of suppressors.
Integrated Components: Includes a pinned low-profile .750 gas block and pistol-length gas tube for seamless installation, saving time and ensuring reliable cycling without custom fitting.
Extended Feed Ramps: Facilitates smooth feeding of both subsonic and supersonic ammunition, addressing common reliability issues in mixed-load scenarios.
Bead Blasted Finish: Provides corrosion resistance and a professional aesthetic that withstands harsh environments.
Technical Specifications
Caliber: 300 AAC Blackout
Barrel Length: 12.5 inches
Twist Rate: 1:7 RH Ideal for stabilizing heavy subsonic projectiles and lighter supersonic bullets
Material: 416R Stainless Steel
Gas System: Pistol Length
Gas Block Journal: 0.750 inches
Muzzle Threads: 5/8×24 Ready for muzzle devices or suppressors
Weight: 32 oz (including gas block and tube)
Platform: AR-15
Why Choose the 300 BLK 12.5 Barrel?
In a market flooded with generic barrels, the stands out for its rigorous quality control, including individual serialization for traceability. This AR-15 300 Blackout barrel solves key pain points like inconsistent cycling with varied ammo types and excessive recoil in short-barreled configurations. At 12.5 inches, it strikes the perfect balance offering better velocity than ultra-short pistols without sacrificing portability. Shooters praise its longevity and precision, making it a smart investment for builds focused on suppressed shooting or close-quarters reliability. Whether upgrading an existing rifle or starting a custom project, this barrel enhances performance without compromising on durability.
Ready to transform your AR-15 into a versatile powerhouse? Add the 300 BLK 12.5 Barrel to your build today and experience the difference premium engineering makes in every shot.
Frequently Asked Questions
Q: Is this barrel suitable for both subsonic and supersonic 300 Blackout ammunition?
A: Yes, the 1:7 twist rate and dedicated 300 BLK chamber optimize it for mixed loads, ensuring stable flight and reliable feeding for both types without adjustments.
Q: Does the barrel come pre-assembled with the gas system?
A: Absolutely it includes a pinned low-profile gas block and pistol-length gas tube, allowing for straightforward drop-in installation on your AR-15 upper.
Q: What makes this barrel ideal for suppressed use?
A: The pistol-length gas system and stainless steel construction reduce backpressure and heat buildup, promoting smoother operation and extended suppressor life during prolonged sessions.


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