Out of stock
Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts. Complete .45 ACP Glock Pistol MUR Upper Receiver
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 Billet Rear Charging Upper Receiver
.45ACP QPQ Nitride-Treated Barrel
QC10 .45ACP Bolt
QC10 Pistol Caliber Flash Hider
Made For the AR Platform- Not Modified
*This product is not compatible with DI gas systems or rifle-caliber bolts.