intilliframe question

do all intilliframe have the bottem of the grip milled out?

im thinking up a sleeper intelli with a cheater and using one of the current asa screw holes to drill and tap to mount an lpr. my issue is if i drill on center of the screw hole i might drill in to the milled out part. and if i off set the drill hole the thickness of the wall might be too thin.

i cant say for the old straight trigger guard ones but the newer style curved ones, yes. they are all milled out like that.