This Lead & Steel barrel (brand part number LS9MM11.3-28) is an 11.3-inch 9mm Luger barrel for AR9 blowback builds, machined with a straight profile and finished in black nitride.

Key Specifications

• Chambered in 9mm Luger.
• 11.30-inch overall barrel length.
• Straight profile contour.
• 1:10 rate of twist.
• Blowback gas system — no gas block or gas tube needed.
• Compatible with standard mil-spec uppers and dedicated AR9 uppers.
• Chrome moly vanadium steel with a black nitride finish.
• Built for AR9 pistol-caliber platforms.

Frequently Asked Questions

Do I need a gas block or gas tube with this barrel?
No — it’s a blowback AR9 barrel, so no gas block or gas tube is needed.

Will this fit my mil-spec AR9 upper?
Yes, it’s compatible with standard mil-spec uppers as well as dedicated AR9 uppers.

Buy the Lead & Steel AR9 9mm Luger Barrel

Simplify your AR9 build with a blowback barrel that skips the gas system entirely. Order from a Lubbock, TX gun shop, part of our Lead & Steel lineup in our AR barrels selection.