I had two CZ-83 pistols dehorned by a gunsmith.
It is not really an obvious visual effect, or shouldn't be.
It is something you should be only able to feel. The corners and sharp edges are slightly softened.
Really, this is something what should have been done at the factory but gets bypassed these days, I'm sorry to say. Hand work costs money.
The smith charged about $35 for the pair.