Ballistic Advantage Super-Shorty AR-9 Barrel – 4.5 Inch – 9mm – Straight Profile

Ultra-Compact Ballistic Advantage 4.5″ AR-9 Barrel with Integrated Extension and Sub-MOA Guarantee

Features

• Newest Generation of this barrel
• Ultra-compact 4.5-inch length including integrated barrel extension
• Blowback operation requires no gas system components
• Compatible with both Colt/Rock River and Glock-style AR-9 builds
• Straight pencil profile for reduced weight and enhanced accuracy
• Integrated feed ramp and barrel extension design
• Sub-MOA accuracy guarantee with match-grade ammunition
• QPQ nitride finish for superior corrosion resistance
• Suppressor and flash can ready with 1/2×28 threading
• 4150 Chrome Moly Vanadium steel construction
• 1:10 twist rate optimized for 9mm projectiles

The Ballistic Advantage Super-Shorty AR-9 Barrel solves the challenge of creating an extremely compact defensive pistol-caliber carbine without sacrificing accuracy or reliability. At just 4.5 inches total length, it delivers ballistic performance equivalent to full-size handguns while providing the superior handling, accuracy, and modularity of the AR platform. The integrated barrel extension eliminates the complexity of separate components while the blowback operation requires no gas system, simplifying builds and reducing weight. This specialized barrel enables defensive AR-9 builds that excel in confined spaces, vehicle operations, and situations requiring maximum maneuverability without compromising on precision.

Note: Requires magwell conversion for Colt/Rock River style with UZI magazines or dedicated 9mm lower for Glock magazines. Ensure 9mm rounds drop freely through any muzzle device before installation.

Specifications

• Brand: Ballistic Advantage
• Model: Super-Shorty AR-9 Barrel
• MPN: BABL9MM025M
• Caliber: 9mm
• Length: 4.5 inches (including barrel extension)
• Weight: 8.1 ounces
• Material: 4150 Chrome Moly Vanadium steel
• Profile: Straight pencil
• Finish: QPQ corrosion resistant (nitride)
• Twist Rate: 1:10 inches
• Muzzle Threading: 1/2×28
• Gas System: Blowback (no gas block required)
• Feed Ramp: Integrated
• Barrel Extension: Integrated
• Compatibility: Colt/Rock River and Glock-style AR-9 builds
• Accuracy Guarantee: Sub-MOA with match-grade ammunition
• Platform: AR-15/AR-9

What’s Included?

• 1x Ballistic Advantage 4.5″ AR-9 Barrel
• 1x Sub-MOA accuracy guarantee