Night Optics Magnification Doubler NO-NA-C2X can exponentially increase the magnification of your favorite night vision optics. This extremely convenient night vision accessory attaches to the exterior of your D-300, D-440, D-2MV, or D-112 objective lens. Once attached, it will double the magnification of your night vision device, turning a 3.6x objective lens to a 7.2x lens and so on. The Night Optics Night Vision Doubling Lens is one of the most useful Night Optics night vision accessories, allowing you to quickly adapt your night vision device to changing circumstances. Night Optics has built these lenses to work specifically with several different night vision goggles and binoculars, specifically the D300, D2MV, D112, and D440. Double your range with the NightOptics NV Double Magnifier Lens.