CMMG BBL 300BLK 16.1 MT 4140CM SBN

The CMMG BBL 300BLK 16.1 MT 4140CM SBN is a high-quality barrel designed for AR-15 platform builds chambered in .300 Blackout. Crafted by CMMG, a trusted name in firearm components, this barrel features a 16.1-inch length ideal for a balanced combination of maneuverability and performance. Constructed from 4140 chrome molybdenum steel, it offers durability and strength suitable for extended use.

Finished with a salt bath nitride treatment, the barrel provides enhanced corrosion resistance and wear protection, contributing to longer service life and easier maintenance. The 1:7 twist rate is optimized for stabilizing a wide range of bullet weights commonly used in .300 Blackout configurations. Additionally, the barrel includes a properly installed M4 barrel extension, ensuring correct headspace and compatibility with standard AR-15 upper receivers.

Designed for precision and reliability, the CMMG BBL 300BLK 16.1 MT 4140CM SBN is a solid choice for those looking to assemble or upgrade their AR-15 upper with a durable and professionally finished barrel from a reputable manufacturer.