mounting a soviet style side mount is a PITA of monumental magnitude. we dont have access to the tools the soviets used to drill tap and fit the side mount bracket. the PU snipers your seeing from aim surplus and a few other places are done in the basement sweatshops aim uses with buba engineers doing it by mk1 eyeball measurements "yuppppp dat looks just about right there!! BARNY GRAB THE DEWALT!!..."
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...