Sightmark Pulsar Challenger G2 1x21 Night Vision GogglesFeaturing a built in, wide angle illuminator for increased nighttime visibility, the Challenger G2 1x21 Night Vision Goggles provide clear night vision visibility and hands free usage for extended movement in low light situations. Outfitted with a five lens eyepiece, distortion along the edge of the field of view is minimized, while contrast and image sharpness is increased. The Challenger G2 1x21 Night Vision Goggles are able to effectively withstand