I’m running a Romeo 3 Max on my legion, using a springer adapter plate, on my S2 I have a SRO, you can’t go wrong with either one. I like the max better, slightly bigger window and I think the dot it brighter.
Wood has been used for hundreds of years, strong and versatile, they even used to make ships and aeroplanes out of it. But now we're living in the 21st Century.