I would think you'd want to be careful about modifying the Saiga to more closely resemble the AK it was born from. Where I live, it would be a felony, but that's the PRK. Before you make any mods that might get you into trouble, check with your state DOJ Firearms division or BATF for guidance. Whether you agree with the restrictions placed on gun owners in this regard is not the point. No one here wants to seen any TFLer lose his gun owning rights altogether through what otherwise might be an innocent tinkering with his firearm.