Headborne Systems Modular Accessory Retention System (M.A.R.S.) The M.A.R.S. is a lightweight, low-profile retention solution for securing battery packs, night vision devices, and other helmet-mounted accessories. Designed in the Netherlands and manufactured in the UK, it’s built for professional use where reliability and minimal bulk matter. Compatible with most modern ballistic and bump helmets, it keeps critical gear locked down under movement, recoil, and rough environments. Key Features Low-profile, lightweight retention for NVGs, battery packs & helmet-mounted accessories Laser-cut laminate baseplate and bolt adapters for durable, precise fit Mini carabiner hooks and shock cord for secure, adjustable retention Includes adhesive Velcro loop pad for added mounting options Alcohol prep pad included for proper surface prep before installation A clean, streamlined way to harden your helmet setup without adding unnecessary weight.