The Nasatka Maximum Security Barrier NMSB XII crash beam barrier is available in a DOS K12, engineer rated K12 or engineer rated K4 range of security solutions. The NMSB XII series is ideal for high to medium security access control scenarios with low to medium vehicle traffic. The NMSB XII series is perfect for cities and sites that require minimal excavation. The NMSB XII seamlessly installs on entrances up to 32 feet (9.75 m) of clear opening, making it a much more cost effective solution compared to multiple bollards or wedges.