DESC: Night Owl National Geographic 3x Night Vision Monocular NGM3X is Generation 1 Nightvision Scope with High Quality Optics. Night Owl National Geographic Gen 1 Night Vision Monocular NGM 3X offers 4-piece 50mm objective and 5-piece ocular all glass element camera-quality 3X lens. Night Owl Night Vision Monoculars NGM3X also provide Auto Gain control to eliminate negative effects of bright light. Night Owl NGS National Geographic 3x Night Vision Scope NGM3X is water-resistant and easy to use and operate.