MCMR Rail Panel Kit 5.5-inch - FIVE PackPerfect fit for your BCM MCMR Handguard Ultra slim and radiused surface to allows a ''round'' handguard feeling, from an Octagonal profile Aggressive Non Slip or Non Reflective surface Ventilated for cooling Can be installed in either direction Can be cut to any length, depending on users requirements. Made in the U. S. A. of a high strength polymer material. Each Kit contains five panel strips.