Features: Accessory Rails designed for the MDT LA Chassis Available in 5" length 5" rail includes a built-in Quick Detach Sling Swivel Socket Rails will also function with other handguards and systems, such as the Magpul MOE Rails include mounting hardware for attachment to MDT Chassis, as well as AR-15 handguards Picatinny spec rail Rugged aluminum construction Matte black anodized finish Benefits: Accessory rails allow for the attachment of various accessories to the MDT Chassis Along with providing space to rail mounted accessories, the longer rails provide a QD Socket for the attachment of slings N Mfg: Mdt SPECS: 5.0" length. Aluminum construction. Matte black anodized finish.