[jakemartens]

Wilson adjutable rear sight is the only one I know that you can get can with dots.

 

[farscott]

I replace the roll pin with a piece of drill bit. I cannot remember the drill bit size that I use. I remember taking my calipers to Ace Hardware and measuring more than a few drill bits.

You can use any staked front sight; however, the options for the rear are extremely limited. Wilson and Millett make replacement rear sights, and the Millett is available with a white outline pattern. As mentioned by jakemartens, the Wilson rear is available with white dots.