I'd go with a rear peep that you can change the arpetures in faster up close than irons, and more user friendly for older eyes
using peeps your ey3 automaticly will find center of the peep so you only have 2 points to line up, the front sight on the target instead of front sight in the rear, then line them both up with the target.
I have a designated close range rifle I always carry when I don't anticipate shots beyond 200

hate to say how much game this old browning clone of a win. 71 has taken, can think of several deer and 1/2 dozen bear I took with it.
RR