Quarter Circle 10 Big Tex 45 ACP AR Pistol Caliber Carbine - Glock Mag - Rear Charging - CA Compliant - 16"

Manufactured by QC10
Manufactured by QC10
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In Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 7 business days or less. FFL orders take approximately 10 business days if you can provide us an actively receiving FFL location.

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time is approximately 14 to 16 days.
•NJ, NY and CA are not able to accept transfers at this time.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers. Due to Covid-19 many are no longer open
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



The Quarter Circle 10 Big Tex Rear Charging .45 ACP PCC is a reliable and powerful pistol caliber carbine. It features all Mil-Spec lower parts and is specifically engineered for .45 ACP Glock magazines, making it the ideal solution for the shooting enthusiasts looking for versatility and durability in a powerful pistol caliber carbine. The carbine features a lower receiver machined from 7075-T6 aluminum with a standard rear charging upper receiver constructed from 7075-T6 aluminum for a long service life. The Big Tex is treated with a Type III hard coat anodizing for wear and corrosion resistance. This QC 10 rifle is made for the AR platform with a 16-inch steel barrel and M-LOK handguard for the attaching of accessories, making it highly modular and adaptable pistol carbine rifle. Every Big Tex is test fired before leaving the factory to ensure reliability and proper functioning. If you are looking for a powerful pistol caliber carbine with endless customization options and a high degree of durability then the Quarter Circle 10 Big Tex Rear Charging .45 ACP Rifle is worth checking out.

  • California compliant fin grip
  • Engineered for .45ACP Glock Magazines
  • Mil-Spec Lower parts
  • Magpul MOE collapsible stock
  • Milled billet 7075-T6 aluminum lower receiver
  • QC10 Milled billet 7075-T6 aluminum rear charging upper receiver
  • Type III hard coat anodizing
  • AR platform
  • 16” barrel
  • M-LOK handguard
  • Endless customization options
  • Test fired before it leaves the factory
  • Includes carrying case
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Barrel Coating
Barrel Length16
Caliber Gauge.45 ACP
Handguard15 in M-LOK Rail

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