Magpul M-LOK Polymer Picatinny Accessory Rail Description Features: Designed for use with all M-LOK compatible mounting locations Allows the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Injection molded from a proprietary reinforced composite for enhanced strength and durability while remaining lightweight; Beveled ends reduce snagging and eliminate sharp corners and edges All hardware necessary for attachment directly to M-LOK Slots on either aluminum or polymer mounting locations is included Rail has 7 usable slots with a max overall length of 3.3 inches Product Details: Item Package Dimensions L x W x H: ‎7.4 x 4.17 x 0.47 inches Package Weight: ‎0.03 Kilograms Item Dimensions LxWxH: ‎1.57 x 1.57 x 5.31 inches Brand Name: ‎Magpul Model Name: ‎M-LOK Polymer Picatinny Accessory Rail Color: ‎7 Slots Material: ‎Polymer Suggested Users: ‎unisex-adult Number of Items: ‎1 Manufacturer: ‎Magpul Industries Corp. Part Number: ‎MAG591-BLK Style: ‎7 Slots Included Components: ‎Magpul M-LOK Polymer Picatinny Accessory Rail, 7 Slots Size: ‎One Size Sport Type: ‎Hunting, Tactical & Military Date First Available: November 8, 2014