Ideally suited for situations where depth perception is a crucial factor the dual tube design of D-221B/321B night vision binoculars can be configured with variety of image intensifier tubes ranging from Generation II+ to advanced Generation III.

This lightweight design offers true stereo depth perception and features built-in IR, Automatic Brightness Control, and Bright Source Protection. The unique, wide exit pupil design eliminates the need for interpupillary adjustment and reduces the size and weight of the unit. With an optional 1x lens kit and fully adjustable headgear, D-121B/321B offers the ultimate versatility in a dual-tube system.