For plinking, the range, housegun, carry?
My summertime light carry is the G26 with MMC sights. I suggest you go to your local range/shop and try some different models out.
My all the time carry is the Glock 26 (now with TRUGLO TFO sights) loaded with 15 rds Corbon 100gr +P PowRBall in a Glock 19 mag plus one in the pipe. I've been carrying it for years. It has over 10,000 rounds though it without a hiccup. Has never failed to feed, fire, or eject. I am utterly familiar with this weapon and it is utterly reliable, and very concealable even with the larger magazine.