The AN/PVS21 LPNVG is unlike any other night vision system.
Designed for aggressive special operations, First, it allows the width of the unit to be significantly shorter than most other NVG’s.
In most cases, this translates to 3-4” less protrusion from the operator’s face. Low profile is very important in close confines.
It better allows the operator to fit into smaller spaces and keeps the unit from snagging on obstacles and gear.