The body material of the product is aluminum material, light and convenient for you to carry.
The diameter of the entity of this product is 1.1in (28mm), and the coating of the lens is fully coated.
In the range from 0 to 8 mm. (B) and from 65 to 73 mm. (A), it is necessary to have a vent groove for the sight rails of the sight. The test is performed using a ruler. Example, the sighting bar in below picture corresponds to the required conditions.
The width of the aiming bar at the site of installation of the sight can be in the range from 5.5 to 10 millimeters. Clamping strips with a thickness of 2 mm, so the height of the ventilation groove (C) is required not less than 2 mm.
The view of the use of this product is infinite, so that you have a pleasant hunting experience.