Ballistic Advantage
Budget-friendly 8.5" .300 Blackout barrel with nitride finish. Modern Series construction offers excellent accuracy and durability for compact .300BLK builds.
The Ballistic Advantage 8.5" .300 Blackout barrel represents an excellent value proposition for compact AR-15 builds chambered in the versatile .300 AAC Blackout cartridge. This barrel length is particularly well-suited for suppressed applications, as .300 Blackout achieves near-complete powder burn in barrels as short as 9 inches, making the 8.5" configuration highly efficient while remaining extremely compact.
The Modern Series barrel combines the durability and strength of 4150 Chrome Moly Vanadium steel with an exceptionally corrosion-resistant QPQ nitride treatment. This salt bath nitride process creates a surface hardness of 65-70 Rockwell C, providing superior wear resistance and corrosion protection compared to traditional phosphate or chrome finishes. The nitride treatment also enhances accuracy by reducing fouling and friction.
The 1:7 twist rate is optimized for .300 Blackout, effectively stabilizing the full range of projectile weights from lightweight 110gr supersonic loads to heavy 220gr subsonic ammunition. The pistol-length gas system is properly tuned for this barrel length, ensuring reliable cycling with both supersonic and subsonic loads. Every Ballistic Advantage barrel is guaranteed to deliver sub-MOA accuracy with match-grade ammunition, making this an exceptional choice for budget-conscious builders who refuse to compromise on performance.
Add the Ballistic Advantage 8.5" .300 Blackout Barrel to your build and see how it enhances your platform.