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QC10 Complete Rear Charging Upper Receiver 7.5

Complete 40 S&W Upper Receiver Assembly

Complete 9mm Upper Receiver Assembly

Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts. Complete 9mm MUR Upper Receiver

As low as $864.95
Availability: In stock
  • Designed specifically for pistol-caliber AR builds in conjunction with VLTOR

  • Mil-Spec construction

  • QC10 PMUR Upper Receiver

  • 9x19mm QPQ Nitride-Treated barrel

  • Glock Magazine Compatible 9x19mm bolt or Colt SMG Magazine Compatible 9x19mm bolt

  • MLOK Handguard

  • Radian Raptor-LT Charging Handle

  • QC10 Pistol Caliber Muzzle Device

  • Made For the AR Platform- Not Modified


*This product is not compatible with DI gas systems or rifle-caliber bolts


More Information
Upper Receiver Rear Charging
Handguard Mount Configuration M-LOK
Size Large
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