The Stern Defense 9mm Barrel (brand part number 006-9MM BARREL10.5INCH-D1-M) is a 10.5-inch AR-15 barrel machined from 4150 chrome-moly steel and finished with a Melonite coating for corrosion resistance and extended service life. Made in the USA, the barrel is threaded at 1/2-36 to accept standard 9mm muzzle devices and cut with a 1:10-inch twist rate for consistent accuracy across a range of 9mm loads. It’s built for pistol-caliber AR builds that need a genuine 10.5-inch barrel in a durable, corrosion-resistant finish.

Key Specifications

• Chambered in 9mm.
• Measures 10.5 inches in barrel length.
• Threaded at 1/2-36.
• Rifled with a 1:10-inch twist rate.
• Machined from 4150 chrome-moly steel.
• Finished with a Melonite coating.
• Made in the USA.
• Finished in black.
• Ships with no sight cut.

Frequently Asked Questions

What thread pitch does this barrel use? 1/2-36.

What twist rate does it use? A 1:10-inch twist rate.

Where is this barrel made? In the USA.

Buy the Stern Defense 9mm AR-15 Barrel, 10.5-Inch

Build a reliable 9mm AR pistol on a genuine 10.5-inch barrel. Order it from our Stern Defense lineup, part of our AR15 barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.