NOTE: The KF Armory is the exclusive distributor for the MODULAR INTERLOCKING BALLISTIC BARRIER SYSTEM (“MIB²S”). The MIB²S is a protective system that is self-healing and fire retardant and will defeat up to .50 Caliber Armor Piercing Incendiary Tracer ammunition. The MIB²S are available in custom colors and in the following threat levels: NIJ Level IIIA, IV and IV+ 50 CAL API-T. Please contact us for acquisition details.