Side Charging Complete 9mm Upper Receiver Assembly

Out of stock

Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts.

Shipping & Returns

Shipping: All orders are shipped within 72 hours Monday -Thursday 6am - 4pm Arizona Time.

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

• 9x19mm QPQ Nitride-Treated barrel

• QC10 Universal 9x19mm bolt

• MLOK Handguard

• QC10 Non-reciprocating Charging Handle

• QC10 Pistol Caliber Flash Hider

• Test-fired at the factory

• Made For the AR Platform- Not Modified

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