This Lead & Steel barrel (brand part number LS9MM8.3-28) is an 8.3-inch AR9 barrel built for pistol-caliber builds that need reliability and long-lasting performance under high round counts.

Key Specifications

• Chambered in 9mm.
• 8.30-inch overall barrel length.
• 1:10 rate of twist.
• Made from 4150 chrome moly vanadium steel.
• Finished with a QPQ nitride treatment for corrosion resistance.
• Threaded 1/2×28 for 9mm muzzle devices and suppressors.
• Suited to AR9 pistols or compact PCC setups.
• Offers strength and corrosion resistance for high round counts.

Frequently Asked Questions

What thread pitch does this barrel use?
It’s threaded 1/2×28, ready for a wide range of 9mm muzzle devices and suppressors.

What is this barrel best suited for?
AR9 pistols or compact PCC setups where maneuverability and performance matter most.

Buy the Lead & Steel AR9 9mm 8.3-inch Barrel

Get a threaded, nitride-finished 9mm barrel ready for your next PCC build. Order from a Lubbock, TX gun shop, part of our Lead & Steel lineup in our AR barrels selection.