The PVS31 lens cover is design to protection and change the performance of night vision devices
Compatible with GPNVG units with a 38mm objective lens outer diameter,and PVS-31 night vision with a 31mm or 32mm objective lens outer diameter
The lens cap for night vision devices is made of 6061-T6 aluminum alloy body, designed for harsh field environments with high strength and impact resistance
The PVS31 lens cover secures directly to the objective lens threads for a firm,no-slip fit. The built-in O-ring seal forms a dustproof and waterproof barrier to keep out dust
Adjustable aperture system users to fine-tune light transmission and focus with ease