US Night Vision Sacrificial Window for PVS-7 / PVS-14 / 6015 NightVision Devices. These Sacrificial Windows by US Night Vision are very useful when using Night Vision Accessories in environments with in high winds or storm conditions. The USNV Sacrificial Window is a great way to keep your Night Vision 's optics in like-new condition. For more quality Night Vision Accessories by US Night Vision please visit our US Night Vision - Night Vision Accessories page. Specifications for US Night Vision Sacrificial Window for PVS-7 / PVS-14 / 6015 NightVision Devices: Manufacturer: US Night Vision Color: Black Width: 6 in Height: 4 in Additional Features: Fits PVS-7/PVS-14 /6015 Package Contents: US Night Vision Sacrificial Window for PVS-7 / PVS-14 / 6015 NightVision Devices 000240