The GBS is a night vision binocular that can be used for special operations on the ground or in the air. Because the GBS increases depth perception, it is well suited for high speed missions such as off-road driving using ATVs and sand rails. It is ideal for military medical applications such as triage and field casualty evacuation under the cover of darkness. The GBS is available with a range of image intensifier tube performance levels. These specifications combine to offer significantly improved performance for the user, regardless of the light levels. The 27mm eye-relief eyepieces consistently provide high quality 40° field of view imagery regardless of eyepiece positioning. The binocular provides individual interpupillary adjustment, fore and aft adjustments spanning a range of 27mm and a tilt adjustment over a range of 10 degrees ensuring customized comfort for any operator. Constructed out of aluminum, the GBS can withstand the constant vibrations and environmental beatings connected with military operations.