Will need a tall rail to clear the rear right. I am not sure there is anything tall enough. Railed gas tube might be thr only way to get optics on AKSU.No that’s just traditionally the only weapons they were on but you can use them on any build you want. They’re most khyber. Most halal. Only disadvantage I guess would be a krink sighting system but build it with a side rail and supplement in a micro red dot