The Stern Defense 00640SWBARREL161INCHD1 40 S&W 16.10" Black Melonite 4150 Chrome Moly Steel Barrel is a purpose-built AR-15 barrel designed to deliver dependable performance with dedicated .40 S&W builds. Precision-machined from tough 4150 chrome moly steel and finished in a low-glare black Melonite, it offers a balance of durability, corrosion resistance, and consistent accuracy for serious shooters.

This 16.10" mid-weight barrel features a 1:16 twist rate to stabilize a wide range of .40 S&W projectiles, making it well suited for range training, competition, and general recreational shooting. The Melonite treatment enhances surface hardness and wear resistance, while the carefully machined profile supports smooth cycling and reliable function in compatible AR-15 platforms. Stern Defense’s attention to detail and commitment to quality manufacturing make this barrel a solid foundation for your next pistol-caliber carbine build.

Key Features:

• Manufacturer: Stern Defense
• Model: 00640SWBARREL161INCHD1
• Caliber: 40 S&W
• Barrel Length: 16.10"
• Barrel Twist: 1:16
• Barrel Finish: Black Melonite
• Barrel Profile: Mid Weight
• Firearm Fit: AR-15
• Threaded Barrel: Yes
• Condition: New
• Weight: 1.95 lbs