After a long and hard thunk, I've settled upon a monstrosity of logic I shall dub a Tiran-6AG borne from surplus early-production Chonmas under the presumption that Isreal bought up and directly used Chonma-214/215/216s in the new war of attrition (of which there were estimated to be less than 500 of them compared to the glut of 2000 other models of Chonma).

But basically, by this point Isreal has kinda stopped using 105mm guns, Korea hasn't built a 125mm gun yet, and 115mm is kinda spoopy in the 2020s, and Isreal kinda has 120mm very much well-standardized. Which is quite the timeline to be in rather than Korea shipping those hulks off to Russia in the late 2020s.

Of note, these [url=https://i.postimg.cc/c4TLBN58/t65.jpg]early Chonmas have pretty much universally been given extended turret bustles by Korea since the mid-1980s[/url]. Laser rangefinders... less universally-so. The '92 and '98 (Chonma III and IV) either required new turret production, or simply featured add-on armor seamlessly applied to the existing turret. However their rarity suggests no mass-production (so less than 100 of these).

Stats-wise, this means it'll have a combat-load of 35 120mm tank rounds and up to maybe a dozen ATGMs (likely a rack or two of 4x BGM-71 tubes plus a 4x reload). Plus a bunch of guns topside (14.5mm KPV, Mk-19, M2 Browning, etc)