Has anyone replaced the iron sights on a Ruger MK III?

I am unhappy with the factory hi-vis sights on my MKIII, and would like to replace them with a ghost ring rear and solid blade front. I just don't know if such a set up is available for the MKIII. My other options is to scope the pistol, but I would rather have iron sights for ease of carry.

The current front sight is too large and covers too much of the target for my tastes. Whether I'm using the orange or green insert they are just too large and distracting while aiming, its hard to see past them to the target.