The Brownells government barrel assemblies are precision engineered components crafted by a reputable US government Contractor, specifically designed for M4 barrels. These assemblies are built to meet stringent standards, ensuring reliability and performance. Each barrel features a hard chrome bore, meticulously applied over button rifling, enhancing durability and accuracy. To guarantee flawless quality, every barrel undergoes rigorous High pressure testing, followed by magnetic particle Inspection and Gauging, ensuring zero imperfections. These assemblies are designed for seamless installation, complete with a slip ring assembly, a non-marked front sight base and a handguard cap pre-installed. The handguard caps are tailored to the barrel length, with M4 carbine assemblies featuring a round cap, while rifle length assemblies are equipped with the appropriate triangular cap. Constructed from 4150 chrome moly steel, these barrels are chambered in 5.56x45mm with a 1:7 twist rate, optimized for 62 grain and heavier bullets, ensuring superior performance and compatibility. The manufacturer collaborates with trusted US-based partners to source mil-spec assembly components, including barrel extensions and front sights, ensuring that each assembly meets the highest standards of quality and reliability. Whether for professional or personal use, the Brownells government barrel assemblies deliver exceptional performance and dependability, making them an ideal choice for discerning users.

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).