Yeah well there’s a few hundred collecting dust and mice in Afghanistan on Habib’s List for real cheap.
IF there were M1 Abrams tanks left in Afghanistan, you can bet that there are fewer now as they were sold to China and Russia.
Buy a few keys of Heroin, they will probably throw in a tank.
How many do you suppose the Chinese have now?
Respectfully, here’s a list of weapons abandoned in Afghanistan. (Probably not complete but almost certainly there are no Abrams either on or off the list.) My Marine buddy told me that the Abrams was not imported into theater for several reasons. It was too heavy to bring in by air. (No land routes were available.) It was unsuited for the territory and there were only a few miles of road where it could be used. Engagement ranges were measured in yards meaning the tank was unduly exposed on the few places where it could be used and would have been a liability.
https://autojournalism.com/list-of-all-us-weapons-left-behind-in-afghanistan/
AFAIK, there were none left in Afghanistan.
None appear on the inventories.