CMMG Barrel Sub-Assm 16.1inch MT 4140CM SBN 5.56mm

The CMMG Barrel Sub-Assembly 16.1-inch Medium Taper 4140 Chrome Moly in 5.56mm is a precision-engineered barrel component designed for operators who demand reliability in intermediate-range engagements. This sub-assembly serves as the core ballistic component for modern tactical rifles, delivering consistent performance in law enforcement, military, and civilian applications where accuracy and durability are essential.

Manufactured from 4140 chrome moly steel, the barrel features a medium taper profile that balances weight savings with structural integrity—critical for extended patrol or tactical operations. The 16.1-inch length provides a practical balance between muzzle velocity and handling characteristics, optimizing 5.56mm NATO ballistics for engagement distances typical in professional and defensive scenarios. Chrome moly construction offers superior corrosion resistance and sustained heat tolerance compared to standard steel.

This barrel sub-assembly is ideally suited for operators building or upgrading CMMG-compatible rifles who prioritize proven materials and precision manufacturing. Installation requires a compatible upper receiver, making it a versatile choice for enhancing the performance of tactical rifles.