4 PCS M-Lok 3 Slots Picatinny Weaver Rail Section Aluminum - 1.5 inch ccessory rail sections, for M-Lok spec. handguards Ideal for attaching lights, laser, optics, bipods, and foregrips Lightweight, made of aluminum with black anodized matte finish Mounting screws and tools included Features 1.5" with 3 slots Specifications Dimensions 1.5" (length) x 9mm (height) x 20mm (width) Material: Aluminum Weight: 1.0 oz Finish: Black Matte Items Included Two (2) 1.5"/ 3 slot rail sections for M-Lok handguard Mounting screws Allen wrenches