Bravo Company 5.5 MCMR Rail Panel Kit, M-LOK Compatible, 5 pack, Black BCM-MCMR-RP-BLK-5 Bravo Company's BCM MCMR 5.5" Rail Panel Kit is a perfect fit for your BCM MCMR Handguard. Its ultra-slim and radiused surface allows a round handguard feeling from an Octagonal profile. Its aggressive non-slip or non-reflective surface is ventilated for cooling. Can be installed in either direction and can be cut to any length depending on the user's requirements. Made in the USA of a high-strength polymer material. Each kit contains five panel strips.