Scope knowledge rookie science posts are common but do not understand ACOG

Speaking of domestic scopes, I believe many friends will think of sniper rifle scopes, but today I'm not going to introduce sniper scopes, ACOG, ACOG for ordinary rifles, the full name of Advanced Combat Optical Gunsight (Advanced Combat Optical Gunsight (Advanced Combat Optical Gunsight) ), the series started in 1987 as part of the American Advanced Battle Rifle-ACR program.

Speaking of domestic scopes, I believe many friends will think of sniper rifle scopes, but today I'm not going to introduce sniper scopes, ACOG, ACOG for ordinary rifles, the full name of Advanced Combat Optical Gunsight (Advanced Combat Optical Gunsight (Advanced Combat Optical Gunsight) ), the series started in 1987 as part of the American Advanced Battle Rifle-ACR program.

ACOG is a combination of a telescopic sight and a light spot sight. It has both the function of magnification and the function of fast binocular aiming. Of course, the situation is somewhat similar to that of the xm8. However, some of its components, that is, the auxiliary scope, have been preserved. ACOG has an automatic zoom function called BAC (Bindon Aiming Concept), that is, when the weapon is in rapid motion, the scope's magnification is 1 When the weapon stops moving or moves slowly, the scope automatically returns to the original magnification. Taking TA31 as an example, that means it is 4 times when the weapon is still or moving slowly. When the shooter moves quickly or quickly turns to the aiming direction , it is 1x. Some people have speculated that it may use automatic zoom functions such as center of gravity movement or hydraulic pressure. In fact, there is no zoom function inside ACOG. It uses a high-brightness aiming point and a new prism erection 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, so as to avoid the impact of the forced selection of the human brain on aiming/observation, so that the aiming eye (that is, by aiming at the eye that observes through the mirror) and the naked eye can work at the same time