Universal Focus Adjustable Iris Ring，NVG Focus Enhancement Device，Variant Night Vision Goggles Cover，34mm/1.346" & 37mm/1.446" OD，for PVS-14, PVS-31, PVS-18 Etc，Fit Both Monocular And Binocular

Note:1. Please Refer To The Actual Product. Due To Different Shooting Angles, Different Lights, And Different Screen Displays, There May Be Some Color Differences2. There May Be An Error Of 1~2mm, Please Refer To The Actual Product. Due To Manual Measurement.

• The NVG focus change device is a suitable accessory for multiple night vision devices. it comes in two specifications to fit monocular and binocular models.the universal focus adjustable iris offers suitability and applicability.
• It can be quickly adjusted based on ambient light. the device also features a standard-quality corning glass sacrificial lens that can be easily replaced without tools.this make that your night vision goggles are is protection and ready for use.
• The NVG focus change device provides an suitable ability to see objects distances without adjusting the focus on night vision goggles. its infinitely variable design allows for the suitable amount of light to enter the NVGs while providing auto-focus capability. the clear front sacrificial lens protects the lens of NVGs and hinders fog and debris from entering.
• The NVG focus change device offers rapid adaptation to ambient light. by turning the adjustment ring，you can open or close the iris to control the amount of light entering your NVGs. this makes it easy to adjust your vision in different lighting situations，additionally，the device has an easy and secure attachment to the end of NVGs，making a stable and suitable connection.
• The NVG focus change device is for fit multiple models. the type 1 variant，navair，37mm od is compatible with AN/PVS6, AN/PVS-7, AN/PVS-7B/D, Anvis-9, AN/PVS-14, NEPVS-14, AN/PVS-23，F5050Yg, DTNVG, DTNVS, RNVG, TNVC-BNVG-M，Artemis, And Mod3. The Type 2 Variant，Ground 33mm OD Is Suitable For AN/PVS-15, AN/PVS-18, AN/PVS-31A BNVD II Mum-14, And Gpnvg.