They don't. When I got my EC9s, I didn't really care much one way or the other about having the manual safety and mag disconnect. Since I've had it, I've grown to actually like having them. Although I carry it with the safety off, it's nice having a little more peace of mind when I can drop the mag before unholstering it with one in pipe. I know a lot of people hate having these safeties on this type of pistol so YMMV.