Original NVG Visor Housing with NVG Mount and Tracks for IHADSS Helmets

Original SPH 4 Helmet Visor Housing with special tracks for IHADSS Helmets with NVG Mount , this tracks are only used with the IHADSS helmet shell ( see photos ), tracks without srews for helmet mount , with all you can see on the pictures, housing and mount is used but in very good-exellent condition , very rare housing with this special tracks,