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.
A tough PCC complete lower made for Colt SMG 9mm magazines. With traditional looks the Rider is a favorite of competition shooters and those who want to celebrate American design in its entirety. QC10 delivers the shooter a premium product and a connection to the USA that others simply do not have.
• Engineered for Metalform Colt 9mm SMG Magazines
• SB Tactical PDW brace
• Mil-spec Receiver Extension (Buffer Tube)
• Mil-spec Lower Parts Kit
• Enhanced Mil-spec fire control group
• Magpul MOE grip
• Ambidextrous Safety
• QC10 Adjustable Pistol Caliber Buffer System
• Springco XP (Red) AR-15 Buffer Spring
Important Warranty Note: If you intend to register your Quarter Circle 10 firearm as an NFA weapon, test it thoroughly before doing so in a Title 1 Configuration. Once you Form 1 or Form 2 it, you are legally the manufacturer, and we cannot service the firearm. Should your firearm require warranty replacement we can only replace it with a Title I receiver and we are not responsible for tax stamps or NFA fees.