Scout mounts . Gives a good stout mounting platform and optics are up to you . But do your homework on these as with anything some are great and some not worth shipping costs . Have used the scout mounts on K-31's , 98's , and a few turkey guns . Have tried scout scopes and Holo sights , the Bushnell Holo sight is great for the money if you can find one , and they have a one MOA dot that is adjustable for brightness and allows for precision aiming that is more than capable of handling recoil and SKS accuracy without blotting put the aiming point . The receiver mounts are pretty much junk , and I tried a few of them . Just my experience with them and as ART said 3 inches or so is about as good as it gets at 100 yds .