I have an SKS with the full Tapco set up. The handguard moves a lot. I tried a red dot on mine. At 100 yards it was shooting what seemed like 3 foot groups. Mine was a terrible set up. I still use the rifle and stock. But I only use iron sights.
Romans 1:16 I am not ashamed of the gospel, because it is the power of God for the salvation of everyone who believes: first for the Jew, then for the Gentile.