This is a Bravo Company known as the MCMR Rail Panel Kit, model 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.
Features:
Perfect fit for your BCM MCMR Handguard
Measurements: Length 5.550" Width 0.625 " Thickness 0.100"
