The Sig Sauer KITTRDSIGHTRAIL Sight Rail for the M400 TREAD is a factory replacement that delivers a precise, low-profile upgrade for your rifle platform, combining a 1.90-inch Picatinny rail with M-LOK mounting to enhance accessory versatility. Crafted as a single-piece rail with four slots, it provides stable, repeatable mounting for optics, iron sights, or other lightweight accessories while preserving a clean, streamlined silhouette on the firearm. The rail is built from durable steel with a resilient aluminum finish, balancing rigidity and corrosion resistance for field use and range work alike. Designed specifically for the M400 TREAD, this rail integrates seamlessly with factory components to maintain alignment and zero, helping you quickly adapt to changing mission or hunting scenarios without compromising accuracy. Whether youre upgrading to improve sighting options or replacing a worn rail, this Sig Sauer sight rail preserves cherished handling characteristics and ensures a robust, repeatable interface for your accessories. Rely on Sig Sauer engineering to deliver Proven fit, dependable performance, and enduring value for your rifle setup.