The 4.5 inch Super Slim X M-Lok forend from Midwest Industries features a 4140 heat treated barrel nut and a 4140 heat treated torque plate that ensures the handguard can be installed and removed without incident. Unlike other forends the 4.5in X is a full seven sides of M-Lok giving you the space you need to mount multiple accessories and devices. The patented anti-rotation QD swivel sockets built into the handguard prevent any movement or wobble over time. The handguard also features a continuous 1913 picatinny rail on top that allows multiple devices to be mounted without end caps and without gaps on either side of the handguard. The handguard is a mere 5.3 ounces installed. For a slim and versatile handguard that gives you all the space you need the Combat Rail X M-Lok Handguard from Midwest Industries is the choice. Specifications for Midwest Industries Combat Rail M-Lok Handguard: Manufacturer: Midwest Industries Color: Black Finish: Anodized Fabric/Material: 6061 Aluminum Gun Type: Rifle Gun Rail: Picatinny Weight: 5.3 oz Condition: New Included Accessories: Barrel Nut, Wrench Mount Type: M-LOK Country of Origin: USA Quantity: 1 Features of Midwest Industries Combat Rail M-Lok Handguard 4140 Heat Treated Barrel Nut Barrel Nut and Wrench Included Features Patented 4140 Heat Treated Torque Plate 4.5" overall length 5.3 oz Installed Weight 6061 Aluminum Type 3 Hard Coat Anodized Continuous MIL-STD 1913 Picatinny Top rail Two Integral Anti-Rotation QD Sling Sockets Super Slim 1.5 Outside and 1.3 Inside Diameter Seven Sides of M-Lok 5-Slot Polymer M-Lok rail included Fully Dehorned and Deburred Package Contents: Midwest Industries Combat Rail M-Lok Handguard