Small Pocket Revolvers
Xavier at Xavier Thoughts has neatly summed up the primary reasons for a revolver as a carry weapon in your pocket.
He makes some very good points:
Reasons I Like a J Frame in My Pocket
1. It's better to have a gun and not need it than to need a gun and not have it.
2. I never have to wonder if a round is chambered.
3. It will fire with the muzzle pressed into ribs.
4. There is no safety to disengage.
5. I never have to worry about keeping it covered.
6. I can discreetly have my hand on my gun while assessing a situation.