Proof Research

The pre-fit barrels for the Sig Sauer Cross rifle are a game-changer when it comes to ease of installation. Your Sig Cross Pre-Fit barrel comes equipped with the barrel extension for shooters to seamlessly upgrade their existing barrel. Crafted with our carbon fiber wrap these barrels offer remarkable weight reduction without compromising accuracy making them ideal for shooters seeking enhanced precision and maneuverability. - Our pre-fit barrel ensures hassle-free installation onto the Cross rifle allowing shooters to quickly and confidently swap out barrels to their desired caliber. Whether you opt for a carbon fiber or steel our barrels enhance the platform and provide shooters with utmost confidence in their equipment's reliability and accuracy. - Lightweight: Up to 64% lighter than traditional steel barrels of similar contour. - Extreme Temperature Resistance: Improved heat dissipation for cooler and longer lasting barrels. - Unprecedented Durability: Wrapped with high-strength aerospace-grade carbon fiber impregnated with a proprietary matrix resin.