Optical Filters for Laser Protection

Tenebraex has specialized in providing optical filters to military customers for over 20 years, providing filtering options that cover the visible and non-visible spectrum.

All optical filters produced by Tenebraex are designed with a degree of tilt built in to the installation of the filter; the tilt in the optical surface is angled toward the ground to also assist in dissipation of signal directed at the optical device the filter is installed on.

In addition, Tenebraex filters include a killFlash ARD that helps protect against possible detection related to glint, glare or other electronic measures. The tilted filter with the killFlash ARD makes retroflection nearly impossible to detect from optical filter.

Designed to Fit Your Rifle

Tenebraex’s extensive inventory means it has killFLASH ARD's to fit many brands and models of scopes. The company constantly works to expand its custom fits. If you don't see what you're looking for please contact the team.

Premium Optic Performance

Tenebraex’s 2" honeycomb killFLASH ARD provides the same performance as a 6" sunshade. Premium performance, reduced size.

XLUME Coating

Tenebraex's proprietary XLUME coating absorbs light, further reducing the potential for glint or reflections.

Designed for Military

Tenebraex killFLASH ARD’s were designed for the USA military and millions are in use around the world.

Optic Lens Protection

Protect your optic lens from damage and scratches.

Optic Installation 

Simply screw into front of scope. Do not use any thread lock compounds. Carefully thread into the objective (front) of the optic. There is a risk of cross threading on finer threads. The ARD should screw in without any resistance. Once the ARD is fully threaded and finger tight, continue to hand tight. Do not use thread sealants or tape. To remove, turn counter clockwise.

Optic Cleaning 

Treat the honeycomb grid with the same care you would any fine optical surface. If clogged with dirt or grit, remove ARD from optic and blow clean. 

If necessary, run palin water through the honeycomb to clear it. Tap the killFLASH housing lightly on a surface to clear excess water, then blow through it to remove the remainder and dry it. Reinstall ARD.

Camouflaging Your Gear

In critical counter sniper situations, the killFLASH disk’s black honeycomb surface can be painted to match a camouflage scheme. 

To do this, first remove the ARD from the scope. Moisten a small piece of foam, such as a sponge, with a camo paint somewhat lighter than the colour effect you want to end up with. Lightly pat the surface of the honeycomb disk with the sponge. 

Do not use so much paint that the cells are filled in; you only need to paint the surface. If you do get too much paint on it, tap the killFLASH disk sharply face down on a piece of newspaper to clear the excess.


Tenebraex’s professional products cover a wide range of applications, with anti-reflection devices, flip covers, weapon sight polarizers, adapter rings, and SunGuard to fit everything from field binoculars to long range professional telescopes

killFLASH anti-reflection devices offer “anti-glint” capability as well as protection for the glass on your optic from sand, dirt and grime! Installed with flip covers, you can extend the life of your investment for many years to come.

W: www.armament.com