Question for the Model 27 group... I'm more of a Model 28 fan but have a Model 27 6.5" from the Classic Series, the 27-9. Not a real 27, right?

Great gun! I did some looking around and it seems like all Model 27's 6" or longer have the patridge front sight. Maybe you guys are used to this, but I would prefer to have a serrated red ramp sight instead. I'm interested in all thoughts about this subject.

If it's not too blasphemous, does one know where I can get the correct red ramp sight? Thank you!