knowledge about sight

The sight is generally used to aim at objects, and it is often used in physical exercises. Now some tourist attractions have some live action field projects, which will use sight.

Some companies specially organize activities to expand and enrich the lives of employees. In these CS live field operations, everyone will wear military uniforms and have a sight in hand to conduct field operations in groups.

At present, there is no accurate answer to the historical background and origin of the sight, which are also difficult to verify. At first, the prototype of the sight should be the aiming setting installed on the firearm. Later, it gradually evolved into the present one

The sight is gone. Although the source of the sight is unknown, there is no doubt that the sight will bring benefits to social development. Now many people have a hobby of studying sight.

The sight is a kind of precision instrument. Only a good sight can be more accurate when aiming at an object. Great attention should be paid to the selection of sight. There is no doubt that you should choose a regular platform to purchase first, so

To ensure that they have no worries. Secondly, we need to know what the sight we need is for. There are many types of sights, so we choose the one that suits us best after knowing about it. The last is to check one of the sights

Whether the equipment is intact, whether there are missing screws, whether the sealing ring is good, and whether it can be waterproof. The price of sight varies according to different types and models.

The use of the sight should be noted that the sight should not be placed in a high temperature environment, and it is not possible to be close to the fire source. Because there will be oil inside the sight, which will evaporate when encountering fire and eventually form on the sight

Water mist affects the use of sight. Sometimes the water mist will gradually mildew, and finally the sight will be scrapped. In addition, the sight is waterproof. If the sealing ring is not tight, it will not be waterproof. In a hot environment or

If a person is close to the fire source, it will damage the sealing ring, and finally cause the sealing ring not to be tightened, resulting in the entry of water vapor.