Description
The Ballistic Advantage Modern Series 9-inch barrel is chambered in .300 AAC Blackout for AR-15 platforms and configured with a pistol-length gas system for compact applications. It is machined from 4150 Chrome Moly Vanadium steel and finished with a QPQ corrosion-resistant coating; the M4 feed ramp extension also receives QPQ treatment. The barrel is rifled with a 1:7 twist and features standard 5/8-24 muzzle threads for common muzzle devices. All NFA/ATF rules apply and possession or use must comply with federal and local regulations.
Key Specifications
Chambering is .300 AAC Blackout.
The barrel measures 9 inches.
The rate of twist is 1:7.
Muzzle threads are 5/8-24.
Material is 4150 Chrome Moly Vanadium steel.
The finish is QPQ Corrosion Resistant.
Gas system length is pistol (pistol-length gas system).
Barrel weight is 21 oz.
The contour is DRP.
Designed for the AR-15 Modern Series platform.
Purpose-built for compact AR-15 builds and pistol configurations, this barrel pairs serviceable materials and a proven twist rate to support reliable performance in .300 AAC Blackout applications. Its corrosion-resistant finish and common muzzle threading make it a practical choice for builders seeking a durable, compact barrel that integrates with typical AR accessories and configurations.
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