The Midwest Industries MI HANDGUARD CRM HD M-LOK is engineered for extreme use with a design that maximizes rigidity and minimizes point of impact shift when NV aiming devices are in play, thanks to its longer 4140 barrel nut and machined heavy-duty anti-rotation tabs that work in concert with the patent-pending torque plate to prevent any forward movement of the handguard. This USA-made, Hard Coat Anodized 6061 aluminum handguard features two steel anti-rotation QD sockets positioned to maximize strength while minimizing gun roll, a torx-driven assembly, and a fully dehorned and deburred exterior for a clean, snag-free profile. It includes a 5-slot polymer M-LOK rail offering the Seven Sides of M-LOK compatibility, ensuring versatile accessory attachment across the rifle platform, with an outside diameter of 1.750 inches and an inside diameter of 1.250 inches to strike an optimal balance between rigidity and weight. Built to support AR-style configurations, this 13.5-inch combat rail is designed for reliability under demanding conditions and is backed by a lifetime warranty, reflecting Midwest Industries commitment to performance, precision, and enduring value for rifle parts, rifle handguards and parts.