Brownells has several entries for that here: Schematic for Berettaź 92/96 FS / D / M & 22 Practice Kit - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools - BROWNELLS
96 Inox, 92D, Practice kit, and one simply listed as "9mm"
I'd get that one if I were you.
Factory Part Number(s):
However - go ask at the Beretta Forum, and even post a WTB ad. Brownells seems to be out of stock. The "92D" one IS in stock, but it is also 2x the price for that one.
I bought one a while back, and keep it on hand for extra parts. I did not get it from google. I think I bought it on gunbroker about a year ago.