Rail Covers are compatible with all RIS rails. Comes in packages of 2 panels. Designed for use on any MILSPEC Picatinny rail. Rail Panel Covers soft material and aggressive texturing provides a solid grip when firing. To prevent damage to the rails or injuries to the users hands, the unused portions of aluminum handguards need to be covered. The individual user can either use the full length covers as they are designed or cut them in half for placement around lights or other aiming devices.