I lost the little screw-on peep site on the rear site block, I dont know what its called formally and I havent been able to find a picture of a similar one. Basically I have a very small threaded rod that sticks out of the rear site and thats what the site screwed onto. I remember taking it off thinking I didnt want to lose it because it was loose, and thats exactly what I did. Anyone familiar enough with the AK's to know what I am talking about? The pic isnt very clear but it's all I can get the camera to focus on.