I don't know about other models.
I assume any 3rd generation 39XX would fit.
The way I found out was to go to the S&W website.
They have a parts list in the area with the manuals.
There you can check out parts by model number.
Under 3913 they listed the 2 different grips.
one was listed as... (gray, LS, NL) the other said... (blk).
I bought mine from S&W... It was under $20.