The only ones I know from Orange Hobby are #G35-129, #G35-121 and #G35-136 , but AFAIK they are all for the T-90 kits.
You must take in account that the T-72 and T-90 gun barrels are similar but not the same. The main difference I found between them is the "bussiness-end" of the barrel... and since OH barrels are made in metal it should be difficult to fix that difference
Am I wrong or missing something?
