Norotos Helmet Mount - Flip up/Flip Down - Black Compact and lighter in weight by approximately 25% of the performance specification All helmet mount components (except pins, springs, balls, and washers) are manufactured from high-strength, lightweight aluminum and titanium Helmet mount surfaces have durable finishes to withstand extreme environmental and field conditions Operating levers, knobs and buttons are designed with tactile differentials for safe and easy operation Vertical Height Adjustment: approximately 1"