Magpul Industries XT Rail Texture Panel, Accessory, Fits Picatinny Rail, Black MAG012-BLK XT Rail Panels offer low-profile 1913 Picatinny rail coverage. The semi-rubbery material offers improved weapon control and rail protection. Easily cut for custom lengths" sections can mount next to each other to form a visually continuous cover. Each panel fits one side of a carbine-length rail. One panel per package.