The Lead & Steel LS9MM8.3-28 AR9 Barrel 8.30" Nitride 1/2"x28 is a purpose-built 9mm barrel for shooters who want dependable performance in a compact pistol-caliber AR platform. Crafted from 4150 chrome moly vanadium steel and treated with a QPQ nitride finish, this 8.3-inch threaded barrel is designed to deliver consistent accuracy, corrosion resistance, and long service life in high round-count builds.

This AR9 barrel is ideal for pistol-caliber carbines and AR-style pistols where maneuverability and smooth handling matter. The 1:10 twist rate stabilizes a wide range of 9mm loads, while the 1/2x28 muzzle threads make it compatible with common 9mm muzzle devices and suppressors for tailored recoil and sound performance. Whether you are setting up a dedicated range gun, training platform, or practical PCC, this barrel reflects Lead & Steel’s focus on solid materials and thoughtful engineering.

Key Features:

• Manufacturer: Lead & Steel
• Model: AR9
• Caliber: 9mm
• Barrel Length: 8.30"
• Twist Rate: 1:10"
• Material: 4150 Chrome Moly Vanadium Steel
• Finish: QPQ Nitride
• Thread Pattern: 1/2x28