Abrams turret question

Here it goes with purging all my Tamiya Abrams and rummaging through my spare parts bins
i ran across two turret tops one from Tamiya’s M1A2 and the other from one of Tamiya’s old M1A1 kits
now here goes the Turret that was in thier ODS M1A1 kits was that supposed to portray the the M1A1
pre heavy armor configuration or was it Tamiya’s lame attempt to portray a M1A1 by modifying the turret from thier orignal M1 ?

As you said.

i kind of figured that