CMMG 30D810A Barrel Sub-Assembly 300 Blackout 8″


Craft your AR-15 with the compact CMMG 30D810A Barrel Sub-Assembly. Made from 4140 chromoly steel, it’s perfect for 300 Blackout builds.

SKU: 815835016283 Categories: , ,


CMMG 30D810A: Compact 8″ Barrel Sub-Assembly for AR-15

Craft your custom AR-15 with the CMMG 30D810A Barrel Sub-Assembly. Perfectly optimized for 300 Blackout builds.

Built for Customization

Our Barrel Sub-Assembly is the ultimate solution for your custom AR-15 upper group. It’s time to construct a firearm that’s uniquely yours.

Compact 8″ Design

This compact 8″ barrel is made for maneuverability and swift action. Ideal for pistol length firearms.

Exceptional Material

Crafted from 4140 chromoly steel, this barrel sports a sleek black nitride finish. Expect durability and optimal performance.

Ready-to-Go Installation

Equipped with a properly installed M4 barrel extension, installation is straightforward. Plus, all our barrel sub-assemblies are correctly headspaced.

What’s Included

  • 1x CMMG 30D810A Barrel Sub-Assembly

Additional information


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