Blu Whistler (P320) Lower Receiver

In stock

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

From $256.46 was $284.95

To $350.96 was $389.95

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.

Customize Blu Whistler (P320) Lower Receiver

* Required Fields

Your Customization
Blu Whistler (P320) Lower Receiver
Blu Whistler (P320) Lower Receiver

In stock



    Available as a stripped receiver (with QC10 Proprietary parts) or with a lower parts kit included

    QC10 Blu Whistler (P320) Lower Receiver with Proprietary Parts (Ejector and Mag Catch)

    Engineered for 9mm, SIG Magazines

    Billet 7075-T6 Aluminum

    Accepts Patented Universal 9MM Bolt

    Type III Hard Coat Anodizing

    Accepts Mil-spec Pistol/Carbine Buffer Tube Threaded Bolt Catch Pin

    12 oz stripped weight