BULWARK Security Bollards combine simplistic installation with ultimate anti-ram functionality. By utilizing the latest manufacturing design technologies, BULWARK brings the strongest protection available while meeting the standards you expect. The BULWARK M50 is an extremely robust bollard system tested to ASTM F2656-15 M50. The single bollard fixed design stops a 15,000 lbs truck in less than 3 feet. Ameristar has engineered both removable and fixed single bollard versions. This extensive bollard offering allows the customer to find the right balance of security for any site.