A sw snubbie. A 442 or a 642. Its not finicky at all. As long as it has ammo it will go bang. Dirty, clean, in-between, pow! $350-400 most any gun store. Buy a cheap $15 dollar pocket hosted and your set. Really the only negative is that it's a close range gun. 10-15 range is range is about it for fast situations, other than that your set.
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