I believe that Roland mentioned there were some minor fit issues with G19's and KKM's into G34 holsters, but not enough to prevent the safe carry of one within the other. I believe this is reflected in Scimitar 2's picture where we can see that the KKM is much more square-cut at the fore, then the beveled nose of the G34. I presented the question poorly in the initial, in thinking it was a matter of length instead of a matter of shape.