ArmorSource AireWeight Counterweight 3/4lbs Coyote Brown One Size. Evenly distribute the weight of your helmet system when equipped with Night Vision Goggles or other frontal devise. Counterweight system is 100percent lead free. Specifications for ArmorSource AireWeight Counterweight: Manufacturer: ArmorSource Size: One Size Weight: 0.75 lb Package Contents: ArmorSource AireWeight Counterweight ArmorSource CAW075-CBS: AireWeight Counterweight 3/4lbs Coyote Brown One Size