Sliding NATO Rail - Mount any standard NATO accessory from the Rail Safe Travels - The NATO Rail provides 90mm of sliding travel, with safety stops at either end Mount Anywhere - Use the two 1/4' and one 3/8' screw mounts on the base for universal mounting Mount Anything - Additional 1/4' and 3/8' screw threads with anti-twist threads line the top of the Rail Precise Positioning - Accurately position NATO accessories with the position markers every 5mm