NVS-33 is a high-resolution Night Vision Attachment that was designed to mount in front of virtually any daytime weapon scope. A variety of mounting options that include a Picatinny rail and a scope ring adaptor mount with different size inserts for the various scope objectives are available. NVS-33 can be used with daytime scopes with 1x-20x magnifications (3x-12x recommended), adding night vision capabilities to daytime target acquisition platforms. NVS-33 utilizes Gen 3 image intensifier tube and fast F1.5 optics for a brighter and sharper image.

The unit is installed, operated, and removed without tools
and without affecting of the daytime scope alignment. The
unit can be mounted on a spotting scope for long range reconnaissance, used hand-held as a Night Observation Device, or used in other night-time operations requiring night vision capabilities. The NVS-33 night sight attachment can be mounted to a variety of handheld weapons from medium-range sniper weapons and assault rifles.