Upgrade your AR-9 platform with the New Frontier Armory 4" AR-9 9mm Barrel. This compact barrel is perfect for building a highly maneuverable pistol or short-barreled rifle. Crafted from high-quality 4140 chromoly steel with a durable black nitride finish, it offers excellent corrosion resistance and longevity. The 1:10 twist rate provides optimal stabilization for common 9mm bullet weights, ensuring consistent accuracy. The barrel's compact size makes it ideal for close-quarters situations and concealed carry applications. Designed for compatibility with standard AR-9 components, this barrel offers a reliable and accurate solution for your 9mm AR build.

Features and Specifications:

• Caliber: 9mm

• Barrel Length: 4"

• Material: 4140 Chromoly Steel

• Finish: Black Nitride / Melonite

• Twist Rate: 1:10"

• Threading: 1/2x36

• Feed Ramps: Standard AR-9

• Gas System: Blowback

• Weight: Approximately 0.5 lbs (estimated)

• Compatibility: AR-9 platform

• Made in the USA