Midwest Industries is dedicated to delivering top-tier, cost-effective AR parts and accessories, proudly manufactured in the USA by skilled American workers. Introducing the latest innovation in their lineup - the Combat Rail system, a one-piece free-float handguard designed for superior performance and durability. Crafted from high-grade 6061 aluminum, this handguard boasts an ultra-durable type 3 hardcoat anodized matte black finish, ensuring resilience in the toughest conditions. Key features include a continuous 1913 picatinny top rail for seamless accessory integration, seven sides of M-LOK modular attachment points for versatile customization and two integral QD sling sockets for enhanced tactical functionality. Experience the perfect blend of quality, innovation and American craftsmanship with Midwest Industries' Combat Rail system. 4140 heat-treated barrel nut with 1-7/16-16 threads The package includes a barrel nut and a wrench Incorporates a patented 4140 heat-treated torque plate Incorporates an aluminum anti-rotation block For receivers with a tang height of 0.15 inches Internal diameter - 1.5 inches Manufactured from hard-coat anodized 6061 aluminum Incorporates five anti-rotation quick-detach (QD) sockets for sling attachment Three sides featuring M-LOK-compatible slots Included is a five-slot M-LOK compatible rail piece Manufactured in the USA