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Speaking of domestic scopes, I believe many friends will think of sniper scopes for sniper rifles. However, what I want to introduce today is not sniper scopes. ACOG and ACOG for ordinary rifles are all called Advanced Combat Optical Gunsight (Advanced Combat Optical Scopes). This series was founded in 1987 as part of the -- ACR program of advanced combat rifles in the United States,

ACOG is a combination of telescopic sight and light point sight. It has both magnification and binocular fast aiming functions. Of course, the situation is somewhat similar to xm8. With the fall of advanced combat rifles using arrow bullets, some of its components, namely auxiliary sight, have been preserved. ACOG has an automatic doubling function called BAC(Bindon Aiming Concept), that is, when the weapon is in the process of rapid movement, the magnification of the sight is 1 times. When the weapon stops moving or moves slowly, the sight automatically returns to the original magnification. Take TA31 as an example, that is to say, it is 4 times when it is stationary or moving slowly, and 1 time when the shooter itself moves quickly or turns to the aiming direction quickly, some people have speculated that it may use automatic zoom functions such as center of gravity movement or hydraulic pressure. In fact, ACOG does not have any zoom function inside. It uses high-brightness aiming point and new prism erecting system, so that the clear image of the aiming point in the mirror and the clear panoramic image obtained by the naked eye can be transmitted to the brain at the same time, thus avoiding the influence of the mandatory choice of the human brain on aiming/observation, so that the aiming eye (that is, the eye that looks through the scope) and the naked eye can work at the same time,

Of course, as a more popular sight, this kind of sight also appears in many cultural and entertainment works, including the call of duty, the island crisis, and even the glorious mission of domestic production.