MKIV rear sight options?

[Bruce in WV]

I'd like to switch to a carry style rear sight on my MKIV, but am having trouble finding makes that fit the rear (female) dovetail. Is the dovetail size unique?
If not, please suggest replacement brands of sights that use the same size (male) dovetails.
Thank you.

 

[contender]

Talk to Ruger. They have different rear sight options. It may not be what you seek, but you can get an answer.