How I widened my rear site double width
Using 2 ‘heavy duty’ #420 cutting wheels mounted together on my Black & Decker 'dremel' tool I cut down into the existing rear sight notch. One disc fit in the existing notch with just the lightest scrapping, by using 2 discs I widened the notch to double it's previous width.
I also painted the front sight post a dayglo orange.
Helps these tired eyes a lot.
the key for me was cost - nil