Magpul M-LOK Aluminum Rail - Sections 5 Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined from milspec-anodized aluminum, M-LOK Rail Sections also feature beveled ends to reduce snagging and eliminate sharp corners and edges. All hardware necessary for attachment directly to M-LOK Slots on either aluminum or polymer hand guards and forends is included. 5 Slots, max overall length of 2.5". Made in U.S.A. Details: Model: M-LOK Aluminum Rail Type: Rail Color: Black Description: 5 Slots Fit: M-LOK Hand Guard Subcategory: Handguard Accessories Style number: MPIMAG581