Took my brand spanking new MP9 out to the range to get a feel for her. These are my very first 3 shots. 115 grain CCI Blazer at 15 yards, standing. The trigger did lighten up after 100 rounds. I was intent on dropping in an Apex DCAEK, but I think I'll shoot it a bit more before I go there. I was thinking of installing 10-8 sights.