I have two M&P Pro 9mm pistols. The 5" and the 4.25". I like the trigger except I prefer a click I can feel when the trigger resets and the M&P does not have that. I replaced the red fiber optic in my front sight and installed a bright green piece of fiber optic tubing. If your local gun shop stocks then pull the trigger on a Pro Series, trap the trigger back, cycle the slide then release the trigger until it resets and pull it again. You will feel the difference.