The Diamondback 9mm Luger AR Barrel (brand part no. 9X1910M50B984NFR) is a 10-inch replacement barrel built to finish out a 9mm AR-pattern build or refresh a worn factory barrel. Diamondback machines it from 4150 chrome moly vanadium steel and finishes it in black nitride for a hard, corrosion-resistant bore and exterior that holds up to sustained shooting. It’s a direct option for pistol-caliber carbine builders and 9mm AR owners who want a durable, purpose-made barrel rather than a generic replacement.

Key Specifications

• Chambered in 9mm Luger for pistol-caliber carbine and AR-pattern 9mm builds.
• 10-inch length, suited to compact pistol-caliber AR builds.
• Machined from 4150 chrome moly vanadium steel for strength and durability.
• Finished in black nitride for a hard, corrosion-resistant bore and exterior.
• The rifled bore is cut for standard 9mm Luger pressures found in factory ammunition, with no subsonic-specific tuning required.
• The nitride treatment coats the bore as well as the exterior, adding wear resistance where the barrel sees the most friction.

Frequently Asked Questions

What caliber is this barrel chambered in? 9mm Luger.

What is the barrel made from? 4150 chrome moly vanadium steel with a black nitride finish.

Buy the Diamondback 9mm Luger AR Barrel

Finish your 9mm AR build with a durable, black nitride Diamondback barrel. Browse more AR barrels from Diamondback Firearms and order from our Lubbock, Texas gun shop for fast, insured shipping.