The Proof Research 143360 PR15 223 Wylde 11.5" Threaded Barrel is a precision-engineered AR-15 barrel built for shooters who demand consistent accuracy from a compact platform. Chambered in versatile .223 Wylde and cut with a 7-twist rifling, this stainless barrel is optimized for stability with a wide range of bullet weights while its 5/8-24 threaded muzzle makes it ready for brakes, compensators, or suppressor use.

This 11.5" barrel is well suited for building a short, maneuverable AR that still delivers dependable precision at practical distances. Its quality construction and carefully controlled dimensions make it a strong choice for range work, training, or competition-focused builds where reliability and repeatable performance matter. Proof Research is known for combining advanced engineering with meticulous craftsmanship, and this PR15 barrel reflects that reputation in every detail.

Key Features:

• Manufacturer: Proof Research
• Model: PR15 223 Wylde 11.5" 5/8-24 7 Twist
• Caliber: 223 Wylde
• Barrel Length: 11.5"
• Threaded Barrel: 5/8-24
• Twist Rate: 1:7