CMMG 300 AAC Blackout Barrel 16.1 Inch for AR15 – 1:7 Twist, 5/8×24 Thread, Carbine Length (30D120A)

• Rifle barrel chambered in 300 AAC Blackout designed for AR15 platform builds
• Barrel length measures approximately 16.1 inches for standard rifle configuration
• Features 1 in 7 twist rate for stabilizing a wide range of bullet weights
• Constructed from 4140 chrome moly steel with salt bath nitride finish
• Threaded muzzle with 5 by 8 by 24 thread pitch for device compatibility
• Carbine length gas system with 0.750 inch gas block journal

The CMMG Barrel 300 AAC Blackout 16.1 Inch 1:7 Twist Carbine is a rifle barrel designed for building or replacing AR15 upper assemblies chambered in 300 AAC Blackout.

This CMMG Barrel 300 AAC Blackout 16.1 Inch 1:7 Twist Carbine features a 16.1 inch length with a 1:7 twist rate and is manufactured from 4140 chrome moly steel with a salt bath nitride finish. It includes a 5/8×24 thread pitch and a carbine length gas system with a .750 inch gas block journal. This product is used for AR15 rifle builds requiring a 300 Blackout chamber and standard interface dimensions. In standard configurations, the barrel includes an installed M4 barrel extension and is headspaced as part of the assembly process. The medium taper profile defines its external contour, while the threaded muzzle supports compatible muzzle devices.