X-vision XANF100 Black 500 yds Range Works With X-Vision XANS500 Scope X-Vision Optics Night Vision IR Flashlight is the only tool capable of complementing our Xtreme Night Vision Scope. With a total darkness range of 500 yards, the XANF100 is certainly a no-brainer when it comes to boosting any IR system with an easily attachable picatinny rail that securely mounts it. features an adjustable beam; long battery life; multi purpose use. The X-Vision Optics Night Vision IR Flashlight has a picatinny rail mounting style to securely fasten to our XANS500 Scope.