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6mm arc barrel, 6mm arc brass, 6mm arc vs 6.5 grendel
  • Sgt of Arms Match Grade 6mm ARC

    Sgt of Arms barrels are match-grade, hand-cut, profiled and chambered barrels. Sgt of Arms barrels are manufactured to extreme tolerances for superior performance and optimal fit of components. These barrels are the cutting edge of accuracy for you next rifle build. Sgt of Arms barrels are what we consider to be the best AR barrel on the market for precision shooting. Sgt of Arms barrels have been a customer favorite since day 1. With the ability to load such a wide range of bullet weights with excellent B.C. its a no brainer for the reloader. This cartridges ability to use for hunting and PRS style shooting makes it a top contender in the AR15 platform.


    • 416R Stainless Steel
    • Button Rifling
    • Hand Lapped
    • 1-7 and 1-7.5 Twist
    • .750 gas block
    • 16" Mid Length gas system
    • 18" rifle length gas system
    • 20"-24" plus 1 gas system
    • 5/8x24 threads
    • Headspaced bolt
    Sgt of Arms barrel lead times are 20+ weeks. The 6 ARC custom made to order. Custom profile barrels are an option within reason. We can also do .875 or .936 on the gas block journal if requested. Just add it to the notes section after you have added to your cart.
      Out of Stock
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