CMMG Banshee MK3 8.6 Blackout 16.1-Inch Upper, Black Armor Cerakote

The CMMG Banshee MK3 Upper in 8.6 Blackout (brand part number 33BFA0C-AB) is a complete 16.1-inch upper assembly finished in Black Armor Cerakote, built around CMMG’s big-bore 8.6 Blackout cartridge for hard-hitting, subsonic-capable AR-platform performance. At 16.1 inches, the barrel clears the federal rifle minimum, so this upper builds into a standard AR-platform rifle without NFA paperwork. This is an upper receiver assembly only, with no lower receiver included.

Key Specifications

• Chambered in 8.6 Blackout, a big-bore cartridge designed for hard-hitting terminal performance, including subsonic loads.
• Barrel length measures 16.1 inches, clearing the federal rifle minimum with no NFA paperwork required.
• Finish is Black Armor Cerakote, a durable, low-maintenance coating on the receiver.
• Model line is CMMG’s Banshee MK3, built for compact AR-platform builds.
• Fits standard AR-platform lowers, requiring a caliber-compatible bolt for final assembly.

Frequently Asked Questions

Is this a complete rifle? No, this is an upper receiver assembly only with no lower receiver included. It ships without an FFL transfer and needs a compatible AR-platform lower to complete a build.

Does this 16.1-inch barrel have any NFA restrictions? No, at 16.1 inches this barrel clears the federal 16-inch rifle minimum, so no ATF paperwork is required.

What is 8.6 Blackout good for? It is a big-bore cartridge built for hard-hitting terminal performance out of an AR-platform rifle, including strong subsonic performance when suppressed.

Buy the CMMG Banshee MK3 8.6 Blackout Upper

This upper will ship as soon as it’s available from a Lubbock, Texas gun shop for your next big-bore AR-platform build. Browse more complete uppers in our AR10 uppers selection.