It looks like someone at some point removed that little tab just for that purpose.
If there's enough wood for the screw to grab, which there apparently is in your case, that's an easy fix.
Now I need to sort out Beretta's LTD model. I don't know why his mounting holes would be off requiring their own set of grips, don't make sense.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."