Enhance your AR-15 platform with the Stern Defense 16.1" .45 ACP Barrel. This precision-engineered barrel is designed to deliver exceptional accuracy and performance in a full-length configuration. Crafted from 4150 chrome-moly steel with a durable melonite coating, it offers excellent corrosion resistance and longevity. The 1:16 twist rate provides optimal stabilization for .45 ACP projectiles, ensuring consistent accuracy. This barrel is perfect for those looking to build a hard-hitting, full-length AR-15 variant in .45 ACP without NFA restrictions. Compatible with Stern Defense's enlarged ejection port upper receivers, this barrel offers a reliable and accurate solution for your .45 ACP AR build.

Features and Specifications:

• Caliber: .45 ACP

• Barrel Length: 16.1"

• Material: 4150 Chrome-moly steel

• Finish: Melonite coating

• Twist Rate: 1:16

• Muzzle Thread: .578-28

• Includes: Locating pin installed

• Weight: Approximately 1.7 lbs

• Compatible with enlarged ejection port upper receivers

• Requires 11 oz buffer or heavier with carbine spring

• Made in the USA