9mm 8.3" INCH BARREL

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  • For standard HG use with any muzzle device or suppressor use SLR 7.5" HG's
  • For linear comp use use SLR 8.5" to 9" HG's ( with our linear comp and a 8.5" HG you will just cover the rear part of the comp. The tube section will be just in front of HG. With a 9.0" HG you will have 1/2" if Linear tube outside of HG.
  • For SD SLR suppressor HG's you want the 7.5/11.5" HG's


9mm chambered 8.3" Straight Profile Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and requires No gas block or tube.

  • Quench Polish Quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer Black Nitride, or Melonite. QPQ is a huge improvement over Chrome Lined barrels. Unlike chrome lining, where the chrome is built up on the surface, QPQ converts the surface without the risk of dimensional build-up. The technique is used when two or more of the following properties are required in a workpiece.Features:
  • Designed to work with both Colt/RR and Glock style AR builds
  • Compatible with standard mil-spec uppers and dedicated uppers
  • 9mm on an AR15 platform operates by blowback and does not need a gas block or gas tube
  • Integrated feed ramp and barrel extension
  • IMPORTANT: A .223/5.56 flash hider will not have enough clearance for a 9mm round to pass
  • Before installing a muzzle device, ensure a 9mm round will drop freely through the muzzle device bore


  • Length - 8.3"
  • Material - 4150 Chrome Moly Vanadium
  • Profile - Straight
  • Finish - QPQ Corrosion Resistant
  • Gas System - Blowback
  • Gas Block Journal - No gas block or tube required
  • Twist Rate - 1:10 Inches
  • Muzzle - 1/2x28 Threaded
  • Weight - 13.6 oz