Lion Gears Tactical 2-Piece M-LOK Rail Set 2.9in Long 5 Slots Black Short. 9? Long with 5 Slots. Specifications for Lion Gears Tactical 2-Piece M-LOK Rail Set: Manufacturer: Lion Gears Color: Black Finish: Matte Fabric/Material: Aircraft Grade Aluminum Gun Rail: Picatinny Gun Make: Universal Gun Model: Universal Length: 2.9 in Quantity: 2 Features of Lion Gears Tactical 2-Piece M-LOK Rail Set Aluminum Picatinny Rail for M-LOK Compatible Hand Guard Systems Complete with 2PCs Rails and 2 Sets of Screws and Nuts Package Contents: Lion Gears Tactical 2-Piece M-LOK Rail Set Screws Nuts Lion Gears MA05ML2: Tactical 2-Piece M-LOK Rail Set 2.9in Long 5 Slots Black Short