I have been admiring the 642 lately, and saw the rare variant, the 632. This, from what I've read, is all stainless, while the 642 is aluminum with a stainless cylinder. Can anyone name an all stainless version of the 642? That is, no ejector shroud, j-frame snub, hammerless. Exactly like the 642 only all stainless. Is there or has there ever been such a thing?