QC10 Side Charging Upper

Availability: In stock

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

    • 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