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Quarter Circle 10 .45 ACP Bolt Assembly

.45 ACP Glock Style Bolt Assembly

Colt 32 Round Magazine

9mm Metal Form Colt SMG Magazine 32 round

9MM Universal Bolt Assembly

Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts. 9MM Universal Bolt Assembly



Availability: In stock
  • Advanced blowback design

  • Manufactured to function reliably with any QC10 9mm platform. Glock, Sig226, MP5, and CLT9MM magazines supported. 

  • Drop-in Installation

  • 8620 Steel Bolt

  • QPQ Nitride treated for maximum durability and wear resistance.

  • Heavy Duty Extractor

  • Removable mass

More Information
Color Black
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