11" 9MM AR15 Gov. Barrel, Modern Series

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Ballistic Advantage 11" 9MM Gov AR 15 Barrel, Modern Series (1/2x28 Threads)

This 9mm chambered 11 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and 1/2x36 x .400 full profile threads.

  • Designed to work with both Colt/RR and Glock style AR builds.

  • Compatible with standard mil-spec uppers. There are also numerous dedicated 9mm upper options that work.

  • Requires the use of a unique magwell conversion (Colt/Rock River style) with UZI mags or a dedicated 9mm lower with Glock mags.

  • 9mm on an AR15 platform operates by blowback and does not need a gas block or gas tube.

  • Integrated feed ramp and barrel extension.

  • Since the “barrel extension” is an integral part of the barrel, the length stated is the true overall length. For example, an 11” 9mm barrel has the same outer dimensions/length as a 10.5” 5.56 barrel.

Before installing a muzzle device, ensure a 9mm round will drop freely through the muzzle device bore.

You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is prohibited, except when installed on a Pistol configuration firearm.

Additional Info:




4150 Chrome moly vanadium




QPQ Corrosion resistant

Gas System Length


Gas Block Journal

Blowback gas system - no gas block

Twist Rate

1:10 inches


1/2x28 threaded


9.5 oz.

Other Info