[Luke Skyfreeper]

The Kahr K40, or even smaller, the MK40:

Pack it into a holster from smartcarry.com. I prefer all steel, but if you really want to go light, you could look at the polymer versions (P40 and the new P40). The steel ones are around 24 ounces. With polymer, you're looking at around a pound.

[ChuckHam]

I don't see a hammer on that one. I'd like to have single action capability as well.

[Luke Skyfreeper]

Sorry, I meant to say "the new MP40."