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Quarter Circle 10 3.5" 9mm AR Barrel
Quarter Circle 10 3.5' 9mm AR Barrel

Quarter Circle 10 3.5" 9mm AR Barrel

On sale: $199.00
Retail Price:$210.00
You Save:$11.00(5%)
In Stock.
Part Number:BRL-9MM-3
  • Proprietary Feed Ramp, contoured specifically for 9MM ammunition, ensures feed reliability and increased ammunition compatibility.

  • 1/2-28 Threading

  • 4150 CMV Steel

  • 1-in-10 twist rate

  • QPQ Nitride Treated

  • Quarter Circle parts are designed to work within mil-spec perimeters.  However, for optimum performance we recommend using QC10 parts for all your core elements, (Receivers, Bolt, Barrel and Adjustable Buffer System).

  • Made For - Not Modified.  Every QC10 product is engineered specifically for pistol caliber ammunition, not modified from an existing platform, increasing functionality, reliability and overall performance.


*Barrels are measured from the end of the muzzle to the end of the breech/feed ramp. Approximately1”  of the barrel rests inside the upper receiver upon installation, resulting in an installed length of 1? less than listed overall length.


*The installation of a pistol-caliber suppressor requires the use of a fixed barrel spacer. See your suppressor manufacturer for information on the requirements of your particular model.

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