The M530 barrier arm was previously manufactured by Apex Fabrication and is now owned by Ameristar. This product is exactly the same product listed on the DoD under APEX. Ameristar's multi-purpose entry drop-arm that controls traffic while providing an anti-ram obstacle to protect from potential vehicular threats. The M530 has two successfully tested designs. The 22-foot barrier design does not require excavation across the roadway, whereas the 12-foot barrier design uses a shallow excavation across the roadway for a monolithic installation. The M530 barrier arm is also available in engineered design lengths to fit specific site requirements.
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