Whilst Cacarno and Kutter are undoubtedly right that these flip up apertures can be used as an othopic to sharpen the view of front and back sights by increasing the depth of field, surely they can be used in their own right as an aperture sight?

If they are elevated to aim over the back sight (assuming it is a fixed standard and does not fold down ) they can be adjusted to give the correct point of impact at a longer range.

Last edited by Parabola; 08/26/26 07:17 PM.