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Discover the pinnacle of precision and innovation with Proof Research long guns, chambered in the versatile .223 Rem caliber. These firearms are engineered for those who demand excellence in every shot. At the heart of these rifles are Proof Research's revolutionary carbon fiber barrels, which offer a remarkable blend of lightweight design and unmatched durability. Utilizing a patented process, these barrels are crafted from 416R stainless steel blanks, wrapped in aerospace-grade carbon fiber, ensuring they are as strong and accurate as traditional steel barrels. This advanced construction not only enhances thermal performance, allowing for rapid heat dissipation and extended barrel life, but also maintains pinpoint accuracy during prolonged firing sessions. Whether you're a competitive shooter or a dedicated hunter, these long guns deliver consistent performance in the most challenging environments. Explore the full range of Long Guns to experience the cutting-edge technology and craftsmanship that set Proof Research apart in the world of firearms.