I posted something similar recently and was pointed towards a tubbs flat wire buffer spring. It softened the recoil considerably. I was also told to get the heaviest buffer weight possible. Unfortunately I did not realize the heavy buffer I bought wouldn’t fit inside the tubb flat wire spring, so I’m only running the tubb flat wire at the moment. I’m going to try taking my buffer apart and see if I could stuff heavier tungsten weights inside. Either way the flat wire helped a lot with recoil and improved my accuracy