Please be aware there are delays on shipping and builds due to COVID-19, please contact Info@quartercircle10.com with any questions.
QC10 Side Charging Upper
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.
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Designed specifically for pistol-caliber AR builds
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QC10 Side Charging Upper Receiver
- 7075 Billet Construction
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Widened ejection port for large pistol caliber pistol cases
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Made For the AR Platform- Not Modified
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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