Proof Research PXT PR15 AR-15 Barrel 6mm ARC 20" Standard Contour 1:7.5" Twist Stainless Steel

Overview

The Proof Research PXT PR15 AR-15 Barrel is chambered in 6mm ARC with a 20-inch length, standard contour, and a 1:7.5-inch twist rate. Fabricated from stainless steel with a natural stainless color, this barrel features PROOF Exponential Twist (PXT) technology, a reimagined rifling design and twist progression engineered to reduce engraving force, minimize throat erosion, and smooth the projectile's transition into the bore. PXT technology helps decrease wear, improve consistency, and reduce felt torque during firing for better recoil control and target retention. Arriving fully chambered and ready for installation, this match-grade barrel provides enhanced heat dissipation, reduced harmonic vibration, and high-volume durability.

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