Super Dooper Deluxe Version
My one and only Kahr is the MK40 Elite '03, with factory checkered wood grips, stainless slide return guide-rod, custom hex grip screws (cut from a set for a 1911), and night sights.
I elected to use the flush fitting mags w/o a finger rest, instead of the +1 mags to keep the package as small as possible.
Never had a problem, other than one bad magazine that did not lock the slide back on the last shot, which was later fixed by replacing the follower.
Not to start a 9mm vs. .40 war, but I noticed that the other posters favor the 9mm versions. In truth, the .40 is a bit snappy, but is more than managable, plus I prefer the bigger whalop that the .40 produces down range.