ELCAN SpecterDR ARDs eliminate reflected light that could give your position away. ELCAN SpecterDR ARDs also act to shield the interior of an optic from the sun's rays, thus reducing internal glare and making for a clearer view when looking up-sun. ELCAN SpecterDR ARDs work well on visible light optics such as rifle scopes and binoculars, as well as on night vision optics and thermal sights. ELCAN SpecterDR ARDs are currently deployed and in use by U.S. military forces and anti-terrorist teams.