The slim notch and wide sharp edges of the rear sight make it difficult for some to pick up the front sight. Especially when you need to shoot fast moving from target to target. The sharp edges have a tendency to pull your eyes away from the notch in the center. If you notice a lot of the common pistol sights for combat and self defense have rounded edges. While a lot of this is to keep the sight from snagging on things it also helps your eyes to focus on the straight edges of the sight notch. So with that being said I modified the AK rear sight by rounding off the sharp edges and widening the the center notch to .075. Which gives the rear sight a profile similar to a Slant Pro sight for the 1911. I find easier and faster to use over the stock sight. While most people these days run an optic on their rifles it always pays to have a set of back up sights you can use reliably. You can see the difference in the photos below.