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QC10 Side Charging Upper Receiver


Product Description

Quarter Circle 10, THE AR Pistol Caliber BRAND.
Leader in top of the line, dedicated AR15 Pistol Caliber parts.
MUR Upper Receiver
  • Designed specifically for pistol-caliber AR builds

  • QC10 Side Charging Upper Receiver

  • 7075 Billet Construction
  • Widened ejection port for large pistol caliber pistol cases

  • Made For the AR Platform- Not Modified

  • Handguards with overlapping anti-rotation tabs may not be compatible with QC10 billet upper receivers, including Side Charging uppers.


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

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