QC10 F-1 Firearms Rear Charging Upper Receiver

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Quarter Circle 10 - The AR15 Pistol Caliber BRAND- F1 Non-Skeletonized Rear Charging  Upper Receiver


Shipping & Returns

Shipping: All orders are shipped within 72 hours Monday - Friday 8am - 5pm PST

Any order containing a lower receiver will not be shipped until we receive a copy of your FFL. Once received regular shipping policies apply. Submit your FFL Here.


Returns: Quarter Circle 10 offers a 30 day return, refund and exchange policy. See Details.

  • Designed specifically for pistol-caliber AR builds in conjunction with F-1 Firearms

  • Mil-Spec construction

  • 7075 Billet

  • Widened ejection port for large pistol caliber pistol cases

  • Made For the AR Platform- Not Modified

  • 6.9 oz stripped weight

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

More Information
Size Large