CMMG 55DE10A Barrel Sub-Assembly 5.56x45mm NATO 16.10″


The CMMG 55DE10A Barrel Sub-Assembly is an ideal choice for your custom AR-15 build. With a length of 16.10″, a black nitride finish, and a M4 profile, it guarantees superior performance.

SKU: 815835014067 Categories: , ,


CMMG 55DE10A Barrel Sub-Assembly

Improve your shooting experience with the CMMG 55DE10A Barrel Sub-Assembly. Designed for 5.56x45mm NATO, this barrel sub-assembly is perfect for constructing your custom AR-15 upper group.

Customizable Build

CMMG’s Barrel Sub-Assembly is an ideal choice for your custom AR-15 upper group build. This versatility ensures you can tailor your firearm to meet your unique specifications and preferences.

Optimal Construction

This barrel sub-assembly boasts a length of 16.10″ and a black nitride finish for added durability and longevity. It’s crafted from 4140 chromoly steel, a high-strength alloy known for its excellent resistance to wear and corrosion.

M4 Profile

Featuring an M4 profile, the barrel sub-assembly is designed to provide an excellent balance of weight and performance. The profile determines the thickness of the barrel, with the M4 profile being one of the most versatile, suitable for a wide range of shooting applications.

Installed M4 Barrel Extension

The CMMG Barrel Sub-Assembly comes with a properly installed M4 barrel extension. This ensures better alignment of the barrel with the upper receiver, improving overall performance and accuracy.

Additional information


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