Proof Research supplies an AR-style barrel chambered in .223 Wylde finished in stainless steel and measuring 11.50 inches. The barrel is cut with a 1:7 twist and a rifled bore with four grooves, and it features a 1/2″-28 tpi muzzle thread for standard muzzle devices. Constructed for AR-platform applications, this barrel emphasizes material strength and erosion resistance for consistent performance under demanding use.
Key Specifications
- The manufacturer is Proof Research.
- The model is described as an AR-Style Barrel.
- The chambering is .223 Wylde.
- The barrel length is 11.50 inches.
- The rate of twist is 1:7.
- The bore type is Rifled.
- The finish is Stainless.
- The muzzle thread is 1/2″-28 tpi.
- The barrel has 4 grooves.
Built from high-tensile stainless material with attention to erosion and corrosion resistance, this Proof Research barrel is intended for precise AR-style builds and compact configurations where a short, durable barrel is required. Its 1:7 twist rate and .223 Wylde chambering support a range of bullet weights for consistent accuracy and stable performance.
