The Ballistic Advantage .300 Blackout 6-Inch Pistol-Length Barrel (brand part no. BABL300013M) is a Modern Series AR-15 barrel built for compact, reliable .300 Blackout pistols. Ballistic Advantage machines it from chrome moly vanadium steel in a DRP profile, then finishes it in a QPQ corrosion-resistant coating that also boosts wear resistance in the bore. The barrel is cut with a 1:7 5R twist rate to stabilize the full range of .300 Blackout bullet weights, from lightweight supersonic loads to heavy subsonic rounds, and it is threaded to run a pistol-length gas system. It is a straightforward drop-in upgrade for any pistol-length .300 Blackout AR-15 build.

Key Specifications

• Chambered in .300 Blackout.
• Measures 6 inches in length, sized for a pistol-length build.
• Machined from chrome moly vanadium steel.
• Cut in a DRP profile.
• Finished with a QPQ corrosion-resistant coating.
• Rifled with a 1:7 5R twist rate.
• Configured for a pistol-length gas system.
• Threaded 5/8×24 at the muzzle.
• Part of Ballistic Advantage’s Modern Series barrel line.

Frequently Asked Questions

What twist rate does this barrel use? A 1:7 5R twist, which stabilizes both lightweight supersonic and heavy subsonic .300 Blackout loads.

What gas system length does it need? It is configured for a pistol-length gas system.

Buy the Ballistic Advantage .300 Blackout 6-Inch Barrel

A durable QPQ finish and a versatile 1:7 twist make this barrel a reliable choice for a compact .300 Blackout pistol build. Browse more AR15 barrels and order yours from our Lubbock, Texas gun shop for fast shipping.