MAGPUL ladder rail covers (MAG013BLK) are used to protect your rails, hands, and gear, the MAGPUL Low-Profile rail covers fit on any RIS/RAS.  These rail ladders can be cut to fit to accommodate a light or other accessories.  The MAGPUL Ladder rail covers are durable and will protect your rails from scratching or other damage.  They also protect slings and other tactical gear from rubbing or being cut by the rail edges.