Ops-Core Fast Bump HelmetOps Core's Fast Bump Helmet features a high cut shell made of Lexan and is designed for less extreme environments where exposure to great blunt trauma forces is limited or non existent, or where the primary need is for integration of mission configured components. FAST Bump (Formally FAST Base Jump) Includes a molded front NVG mount and 4 position Accessory Rail Connectors (ARCs) with external side Velcro loop. Vent holes for increased ventilation and