Hello all and forgive me if this question has been asked and answered before but as a new M&P .40 owner as yet unfired I had never heard of an apex trigger and wanted to know more about it and do they install this system or only sell the parts...I'm no gunsmith so I wouldn't feel comfortable digging into the bottom end of the pistol and would rather let someone that knows what they are doing do the work if I decide to do this... I don't want anything so hair trigger like on a pisol with no safety...I think thats how people with Glocks have AD problems due to their very light triggers...I only have one other striker pistol a Kahr PM40 but it has a very long almost revolver like trigger pull which is very different from the M&P which has a pretty good trigger to me as is so it might be best to leave it alone but I would appreciate some other more informed opinions....As always, thank you all...