The older ADLs were the same as the BDLs without a jeweled bolt, stock endcap, and hinged floorplate. Below is a picture of a 30 year old ADL.



The ADLs of the latter day, or at least the last time I looked at them had a much lower grade metal finish than the BDLs, and had cheap flimsy plastic stocks. The entry level 700s have similar cheap stocks.

The actions for all grades of 700s are the same, with the only major variation being the length.