I have one, pics in this forum. Its not a J frame for sure, a little bigger and a lot heavier. I would say its a little smaller package than say a model 64 or 66 snub, but dimension for dimension i couldn't tell you.
I carry j frames in my pocket 99% of time, ( i have 3, a 342 airlite, 337 airlite and a 360SS) but the kimber i would carry on belt or inside pants.