Because being seen can mean being hit.

Glint is an obvious signature that can key even a marginally trained counter-observer to detect your troops or equipment.

Being detected because of reflections can quickly compromise operational security. Throughout military history, it has resulted in the loss of personnel, the failure of missions...and even changed the course of battles.

The answer to the deadly problem of glint. Tenebraex ARDs (Anti-Reflection Devices) use a high-tech honeycomb material with special anti-reflection coatings and patented geometry to provide a low-cost, retrofittable and field practical way to hide reflections from optical surfaces--without loss of resolution and with minimal light loss. Tenebraex’s ARDs are used by U.S. Army, Navy, Marines, and Special Forces.

The RX22 killFLASH® Anti-Reflection Device was made by Tenebraex especially for Trijicon Reflex Sights.

How the killFLASH Anti Reflection Device works.

Camouflage your Optics! Modern optics can be a powerful assistance in observation and targeting, but reflections from those same optics can generate a strong signature that can give away your location to even an untrained, technologically unsophisticated observer. The traditional way to shield an optic from glint is to use a long, tubular lens shade. The problem is, if a shade is long enough to effectively shield the optic from glint, it can be too long and bulky for practical use in the field. Tenebraex ARDs work by a clustering a large number tiny tubes into a honeycomb-like grid. The length-to-width ratio has a certain selected relationship to the field of view of the optical system. With this patented geometry, there's no vignetting or reduction in the field-of-view, light reduction is only on the order of 15%, any loss in resolution is imperceptible, and glint is eliminated. For you, a clearer view. Tenebraex 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. Tenebraex ARDs work well on visible light optics such as rifle scopes and binoculars, as well as on night vision optics and thermal sights.