Hey shooter, how's it goin..! The Kahr is a good gun, but for some reason has a strange, or should I say, quietly respected following, from what I know. Any time I've ever fired one it performed flawlessly, to say the least. You have already answered your own question too,
**"i held one the other day and fell in love. Looks , size and everything is pefect for cc but idk anything about them or which calaber to get...im not a big fan of anything smallet than a 40 cal"**
You will most likely be much more proficient with somthing you already have practice with. If you can hit your mark with regular pactice, and pistol drills, you'll be just fine. I'm sure there are other guns you've fired, that you liked also, but did they fit you well enough make you confident in being able to hit what you have to..? THAT IS THE IMPORTANT PART... Don't just buy the .40 becuase it's a larger caliber.
Hope that helpped a little.
The EARLY bird may get the worm... But the SECOND mouse gets the cheese..!!!