I'm interested to know how exactly a gunsmith goes about changing the sight setup to adjust aim.  Obviously windage is done by moving the sight left and right in the slot.  Duh.   

But what about elevation?  Do they install a higher/lower rear sight?  Do something else?

I ask because I'm going to send a pistol out to get the sights changed from "behind the dot" to "point of aim" (the merits of each were discussed here).  I was going to get Novaks, but instead I decided to just get the existing sights adjusted.  I'm interested to know how they go about achieving my desired result.


Yeah... I recognize this might be a stupid question to ask.  Indulge me please. 


-T.

  Sig Sauer's you can change front or rear for height.   Front sight changes 1" POI and rear changes 2" POI?   Or vice versa? I can't remember.

    Or, as Bubba's have been doing for centuries, we weld up or file down sights.     Dad welded up the front sight of his Super Blackhawk (That he got cheap after someone cut the abrrel to 6.5"), then filed it down, you'd hardly notice it wasn't factory.   

 My "GI" sighted 1911 shot super high, so dad welded it up and I filed it down to my liking.    It looks rougher but not really noticable.

  My Sig 220 shot pretty low, but I was too chintzy to buy sights, plus both sights were the max elevation Sig Sauer produced.     I filed down on the front, there's still a (thin) layer of metal over the front (illuminated) dot and it now shoots where I want it.