Springfield XDM 3.5 9mm
Better, safer, keeps on target with less kick than glock. Made for concealment. Easy to use.
Most importantis that gun feels comfortable in your and your wifes hand.
by far better than any other posts 1911 is not concealable. revolvers are fine but bulgy and not good for concealment either. Glocks are good. Clocks are for keeping time.