CMMG 5.56x45mm NATO 16.1" Midlength Barrel Sub-Assembly 4140 Chromoly Steel

The CMMG 55DC70A Barrel Sub-Assembly is an exceptional addition for anyone looking to build a custom AR-15 upper group, featuring a robust 16.10-inch barrel crafted from durable 4140 chromoly steel. This barrel boasts a sleek black nitride finish, ensuring both aesthetic appeal and enhanced corrosion resistance. Designed with a medium taper profile and a midlength gas port, it provides a balanced shooting experience, optimizing gas flow for reliable cycling. The barrel is equipped with a properly installed M4 barrel extension and is meticulously headspaced, guaranteeing precision and performance right out of the box. With a 1:7 twist rate and a 5.5645 NATO chamber, this barrel is engineered to handle a variety of ammunition types, making it versatile for different shooting applications. The threaded 1/2-28 design allows for easy attachment of muzzle devices, further enhancing its functionality. Whether you're a seasoned hunter or a competitive shooter, the CMMG 55DC70A Barrel Sub-Assembly is designed to meet your needs, delivering reliability and accuracy for all your shooting endeavors.