The traditional shading method of sniper rifle is similar to the shading principle of camera lens, that is, adding a simple shading tube, which is better if the sniper is at a long distance. However, due to the increasing use of low-power or non-power optical sights by foreign military and police forces, AOCG (reflective sight) and CCO (melee sight) are more and more common in American conventional infantry, so it is inconvenient to add a large and thick hood to light assault weapons. Anti-reflection device (ARD) for optical equipment developed by American company, whose registered trademark is "killFlash? 0? "3" means to kill the flash. killFlash？ 0? 3ARD adopts the traditional shading principle, but the structure and materials are novel. Its structure is made of a Nomex honeycomb porous disk reinforced with resin in a short aluminum tube, which looks like a honeycomb porous filter plate. The light hits the mirror through these holes, and it is difficult to form a strong large-area reflection, just like installing countless tiny awnings in front of the camera, but this Columbus idea and production material have been patented.
According to official publicity materials, take the lens of a 74mm M 144 sniper scope as an example, a killFlash? 0? The effect of 3ARD is equivalent to a traditional sunshade tube with a length of 889 mm, but there are gains and losses. 0? The disadvantage of 3ARD is that this honeycomb filter will reduce the light transmittance in front of the lens, which is said to be about 15%. But anyway, flash killer. 0? 3ARD's concealment made it popular with special forces as soon as it came out. Us special forces took the lead in installing killFlash on their ACOG? 0? 3ARD, now all the ground combat troops of other conventional arms adopt killFlash? 0? As an anti-reflection material, 3ARD is installed on telescopes and sights.
Because the light transmittance will be reduced, the requirements for environmental conditions will be higher, and the shooting distance will be affected, but the accuracy should not be affected. Because you can only aim if you can see clearly, since you can see clearly, you should be able to ensure accuracy.