The US Milspec PVS-14 lenses are industry-leading lens that surpass all others in the areas of rectilinear performance, off-axis flare suppression, light transmission, and contrast. These highly sought-after lenses are easily identified by the deep blue/teal anti-reflective coatings on both front and back lens surfaces.
Some lenses will have some traces of white lithium grease from the factory to aid in installation.