Premium Proof Steel AR-15 barrel in 223 Wylde with proprietary Caliber Matched Gas System for optimized performance, reduced recoil, and enhanced reliability.
Fits: AR-15
Proof has engineered this AR-15 barrel to deliver measurable improvements in performance and reliability across the platform. The standout feature is their proprietary Caliber Matched Gas System (CAMGAS)—a precision-tuned gas port location designed specifically for your cartridge and barrel length.
The original AR-15 platform was optimized around the 223 Remington and 5.56 NATO cartridges. Modern high-performance rounds like 22 Nosler and 6.5 Creedmoor maintain higher bore pressure further down the barrel. By repositioning the gas port, Proof ensures your gas system operates at the pressure levels the AR platform was designed to handle—not overpressured or underpressured.
Whether you're building a precision rifle or upgrading an existing platform, this barrel keeps you on target while taking full advantage of modern ammunition performance.