Second you can not get a Concealed Weapons Permit in Michigan. You -can- get a CPL.
For your holster needs, see our sister forum 'Holsters and Accessories'.
You mentioned 'size' for some reason. Size isn't especially relevant in an OPEN CARRY configuration. Please see any number of concealed carry, IWB type holsters, weapons statutes, knife forums. If you mean 'back up gun' concealed information, I'd say that firearm is very tiny and should be fine in any holster that fits.
The Beretta Forum has a few negative comments; http://www.berettausa.com/products/model-96a1/#tabid_1
"Great gun, no holster options". It weighs over 40 ounces loaded. (34.4 unloaded).
Check here for stats: http://www.genitron.com/Handgun/Bere...0-SW/Variant-1
You could probably stop the threat just by hitting the attacker with this device.
HTH, and again, welcome to OCDO.