PROOF Research Terminus pre-fit carbon fiber & steel barrels are designed specifically for either the Apollo, Kratos, or popular Zeus Quick Change actions. Your pre-fit barrel will arrive chambered/threaded and ready to be installed in a simple operation requiring few specialized tools.
PXT - PROOF Exponential Twist - is a complete rethinking of conventional rifling geometry and twist progression, engineered to reduce engraving force, minimize throat erosion, and create a smoother transition as the projectile engages the rifling.
By dramatically reducing rifling lead angle and smoothing projectile engagement into the bore, PXT technology helps reduce wear, improve consistency, and create less felt torque during firing for improved shooting control and the ability to stay on target more effectively.
Up to 64% lighter than traditional steel barrels of similar contour.
Improved heat dissipation for cooler and longer lasting barrels.
Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin.
Excellent erosion wear characteristics and corrosion resistance.
An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing.