The CR123/18350(?) bodies are understandably desirable but the Moddoolar 14500 slim body is a Lot of Fun with the Wasp Head. One needs to accept what current a 14500 battery can sustain but this has to be one of the hottest 'AA' sized battery flashlights in existence. The slim body is very handilicious (with a 'cigar' hold or in-hand) yet knurly in a diamondback kind of way; with a diamondback delrin or clicky Triad tailcap!