Quarter Circle 10 .40 SW Barrels

QC10 .40 S&W barrels are threaded for the attachment of flash hiders, suppressors, and accessories, and finished with a nearly indestructible protective treatment. 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. Specifications for Quarter Circle 10 .40 SW Barrels: Manufacturer: Quarter Circle 10 Color: Black Nitride Finish: QPQ Nitride Fabric/Material: 4150 CMV Steel Cartridge: .40 S&W Threads per Inch: 5/8×24 Barrel Twist Rate: 1-16 Gun Make: AR Platform Gun Model: QC10 Blu’ Whistler, QC5, QC10 Rider, QC10 Ranger Features of Quarter Circle 10 .40 SW Barrels: .75 (medium) profile 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. Package Contents: Quarter Circle 10 .40 SW Barrels