Where did these Sram steel chainrings go?

[Croglet]

Hi, 
I have a SRAM GX 1x12 drivetrain and it's almost worn out, again 😢
The last time I replaced it I used one of these steel chainrings but I can't seem to find them anywhere now.  Anyone know where they're available in SA? 

I know they're "old" and a couple grams heavier but well worth it imo. A lot more affordable than the new aluminium chainrings and bulletproof. Surely I can't be the only guy who still uses them to milk as much mileage as possible out of a new drivetrain?