The front sight must lie in the middle space of the rear sight. Upper line of the front sight must be in the same horizontal line (level) with the upper line of the rear sight. From the both sides of the front sight must be the same free space from two inner sides of the rear sight.
This complex of the front and rear sight must be appointed in the middle down part of the “bull eye”, on the target, within that between sights and the “bull eye” is “free space” (with line) i.e., front sight is pointing approximately on ring nr. 5. This “free space” is necessary because only on that way it is possible to make corrections in the sighting process.