Was gonna say the same thing, would be nice if they could (if structurally it is possible) reaplce the 12.7mm with 20mm ATOM. The Tank already has radars for AKKOR, they could use it to detect drones and use the 20mm gun with ATOM as the Hard-Kill instead of wasting AKKOR for it.
In theory, we have (and actively use on other platforms) everything we need to make a short range CIWS for land platforms.
We have few radar systems that we use that could detect drones and other munitions, I don't know if sensors on Altay can detect drones from a distance, but if they can't perhaps we could adapt one of those radars to use with Altay.
Aselsan Sarp (and other remote weapon systems) have auto tracking option, as far as I can remember. So we are covered in that regard. And, Gökdeniz can auto-engage targets, so Aselsan has that capability as well. They also have ATOM 35 and 25 mm and I think it was mentioned they were going to make 30 or 20 (or both) as well. So, we either have the munition ready or we know that it can be developed.
Between MKE and others, we know we can make any calibre barrel we need. Perhaps we can use shorter barrels, to help with remote turret adaptation and since it is primarily a self defence weapon, loss of range wouldn't really be important, as long as we can keep it to something like 1 km. Even Venom LR could be an option here.
The question is, can all these hardware and software we have or use in other systems be put together to make a compact (preferably only slightly larger than Sarp Altay has now) CIWS system that we can use with airburst munitions primarily against drones? No fucking idea, but I really hope we can.