Complete Upper W/PMUR 9MM Assembly

In stock


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

From $864.95

To $954.95

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.

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Complete Upper W/PMUR 9MM Assembly
Complete Upper W/PMUR 9MM Assembly

In stock


    • Designed specifically for pistol-caliber AR builds

    • QC10 Billet Rear Charging Upper Receiver

    • 9x19mm QPQ Nitride-Treated Barrel

    • Compatible with QC10 Ranger (GSF), Rider (COLT), and Blu Whistler (Sig P320) Lower Receivers
    • QC10 Universal Panted 9x19mm Bolt 

    • MLOK Handguard

    • 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.