4150 CMV steel
1-in-16″ twist rate
QPQ Nitride treated
.75″ (medium) profile
QC10 10mm barrels bring the power and reach of the 10mm Auto cartridge to QC10 firearms. Now, you can get true magnum power in a compact QC10 pistol or carbine, perfect for hunting or tactical applications.
NOTE: 10mm is a violent round, increasing overall wear on small parts, including but not limited to, hammer pins, bolt catches and ejectors. Due to the velocity and wear on the bolt catch, Last Round Hold Open may not be 100% reliable.
While other pistol caliber cartridges operate at relatively low pressures, the cartridge this barrel is designed for uses extreme pressures to generate increased performance. Always start with the heaviest buffer and spring combination and work down. For optimum performance, Quarter Circle 10 recommends use of the following:
● 9-12.5oz buffer (QC10 Adjustable Pistol Buffer is recommended)
● QC10 .40 S&W Bolt Carrier Assembly with mass installed
● Extra Power AR-15 carbine buffer spring for full power loads
QC10 offers most of these components for sale, and will be glad to help you source compatible components should we be out of stock. Quarter Circle 10, LLC shall not be liable for any special or consequential damages, including negligence, that result from the use of, or the inability to use, the materials on this site or the performance of the products, even if Quarter Circle 10, LLC has been advised of the possibility of such damages.
ALL WARRANTIES AND/OR CONDITIONS OF ANY KIND WHATSOEVER, EXPRESS, IMPLIED, AND STATUTORY, ARE DISCLAIMED. ALL EXPRESS AND IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. NO WARRANTY EXISTS THAT THIS PRODUCT WILL MEET YOUR REQUIREMENTS. NO ORAL OR WRITTEN INFORMATION PROVIDED SHALL CREATE A WARRANTY, OR IN ANY WAY INCREASE THE SCOPE OF ANY WARRANTY. SHOULD THE PRODUCT BE PROVEN DEFECTIVE, YOU ASSUME THE ENTIRE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION. Applicable laws in your jurisdiction may not allow the limitation or exclusion of liability, incidental or consequential damages, or warranties so these limitations or exclusions may not apply to you.
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.
|BARREL LENGTH||10.5 INCH, 14.5 INCH, 16 INCH, 3.5 INCH, 5.5 INCH, 7.5 INCH|
|Card Dollar Value||No|
|Model / Caliber||No|