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  • Quarter Circle 10 Barrel Profiles Quarter Circle 10 Barrel Profiles

.40 S&W Barrels

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Quick Overview

 


Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts. .40 S&W Barrels


 

Availability: In stock

$180.00

* Required Fields

$180.00

Details

  • 4150 CMV steel

  • 1-in-16″ twist rate

  • Choice of .578-28 or 5/8x24 Threading

  • QPQ Nitride treated

  • .75″ (medium) profile

 

QC10 .40 S&W barrels are threaded for the attachment of flash hiders, suppressors,* and accessories, and finished with a nearly indestructible protective treatment. Our barrels have a medium outer profile and come in a variety of lengths to suit any need.

 

Note: Barrels are measured from the end of the muzzle to the end of the breech/feed ramp. Approximately 1″ of the barrel rests inside the upper receiver upon installation, resulting in an installed length of 1″ less than listed overall length.


*The installation of a pistol-caliber suppressor requires the use of a fixed barrel spacer. See your suppressor manufacturer for information on the requirements of your particular model.

Additional Information

BARREL LENGTH 10.5 INCH, 14.5 INCH, 16 INCH, 3.5 INCH, 5.5 INCH, 7.5 INCH
Handguard Length No
Handguard Length No
Size No
Size No
Thread .578-28 , 5/8-24
Card Dollar Value No
Buffer Tube No
Muzzle Device No
Model / Caliber No
Lower Receiver No
Buffer Tube No
Assembly No
Assembly No
Caliber No
Caliber No
COLLAR CONFIGURATION No
GEN COLT No
GEN GSF No
GEN GLF No
Charging Handle No

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