Trijicon ST01 are conventional sights for the M9-A1's.
Quick story, I haven't shot my Steyr since Nov 2009. Yesterday I decided to shoot it at the local IDPA match (which bumped its round count over 3000). My first stage was not too bad, down 4 but a little slow. I ended up further down the ranks than normal but the sights and trigger slowly came back to me. I have been shooting the M&P9Pro for last 2 years exclusively.
I remember from the past that I would string vertically with the traps but I think most of my misses were a touch low, but grouped. About 4 people asked about it and I let them shoot a few mags after the match.
I'm going to shoot it for the next few matches and then decide if I am going to swap the traps out with the ST01's. I wonder how expensive it would be to get Warren Tacticals on this beast???