B 5 Systems M-LOK Rail Covers are low-profile and light weight covers that install directly onto M-LOK compatible systems. These covers offer an enhanced gripping surface and can be cut to be customized for length or combination of colors. Includes four panels. FeaturesCompatible with all M-LOK systemsNon orientation specific - no up/down, left/right, front/back orientationLow profile and light weightEnhanced gripping surface