I have a m70 that is missing the stock original does anyone know where i could procure one? I also had 5, m24 in my possesion i got them from century arms last year. all of them have broken optics. does anyone know what model the sights were? some have the large globe frnt adn differign rear apature sights. I think they all were a williams variaty but none of them have any markings. were the sights made by otterup too?