Designed for steady, repeatable performance in varied environments, the Proof Research 134535 Bolt Action Barrel Pre-Fit 6.5 Creedmoor 20" 1:8" Twist (5 Groove), 5/8"-24 tpi Threaded, Stainless Steel, Drop-In Design for Sig Cross emphasizes functional reliability and straightforward operation. This barrel is crafted with a focus on precision engineering and ease of installation, allowing users to achieve optimal performance without the need for a gunsmith. Ideal for range training and recreational shooting, this barrel ensures consistent accuracy and durability. Proof Research is renowned for its innovation and commitment to quality, making it a trusted choice among firearm enthusiasts.