Hiya Gary,
We have been having LOOONNNGG discussions with the Eastern European Bretheren about the T-72 over on Tanknet. Here is the actual deal from them:
T-72
T-72M
T-72A
T-72AM
T-72B
T-72BM
T-72B(M)
(These are not all the designators)
All of them are legitimate T-72 variants, based on turret or hull configuration. All of them supposedly are in Russian Army service, although I have not seen actual photo's of some of them.
The M usually stands for Modern, as in a modernized version of a earlier variant. The T-72M is a Modernized design of the T-72 etc... The T-72B(M) is a new designation to set it apart from the T-72BM...it is a update of the T-72B but does not go in the same direction as the T-72BM, which became the T-90. Confused yet? I am too...
And the T-72M with the 30mm welded glacis plate is actually from russian construction...they were made for export and the buyer backed out so the Russian Army took them...just like the T-90S ordered by Iran that were never delivered so they are currently in Russian Army stocks.
Anyhow, as Gary said, the turret you want is going to depend on what you want to model. The new verlinden turret, as stated, has a few minor issues, but it is also a fair amount cheaper than Model Point, Miniarm, or Blast.
Best bet is to match hull features with turret features...no armour to no armour, resin applique to resin applique, and ERA to ERA.