Lead & Steel AR-9 barrel in 9mm with 11.3" length and 1/2x36 threading. QPQ Black Nitride finish on 4150 Chrome Moly Vanadium steel for durability and corrosion resistance.
This precision-engineered AR-9 barrel delivers the performance and durability serious shooters demand.
The 4150 Chrome Moly Vanadium steel is the same material used in quality rifle barrels across the industry. The QPQ Black Nitride finish is a case-hardening process that creates a harder, more wear-resistant surface than standard bluing or parkerizing. This means your barrel will handle thousands of rounds while resisting fouling and corrosion.
Whether you're building a compact 9mm AR for home defense, competition, or recreational shooting, this barrel provides the foundation for a reliable, accurate platform.