I am a person that is not impressed very easy, more of a pessimist than a optimist but these sights for me were unbelievable. They take the place of the stock rear sight. I know what everybody is going to say it is to far away from the eye for a peepsight. I have old eyes that have a hard time keeping focus with the stock sights. It is hard to explain the sight picture you get,sort of like ghost rings on a shotgun. I also have a smaller diameter front post. I also order the optional apertures for individual preference. The Mojo sight is fully adjustable and is made of all metal. After sighting in, good consistent groupings at 100 and 200 meters with surplus ammo. If you are looking for something different in iron sight for a SKS check out their sight for more information.