They’re not made in limited numbers the guy cranks them out constantly he’s just a small operation so he can’t put that many out at a time. They’re about $26 over there (pretty expensive).
But you’re right on everything else, Ukraine has been cracking down on mag imports so very few people are sending them over here. Pretty much what we have is what we’re gonna get, which sucks since they’re pretty neat.
For a comparison Pro Mag and Magpul mags cost more than the SD mags in Ukraine. Bakelites and Surplus Steel are about 1/3rd of the SD mags.
Magpul: 1,745 uah
Svetogor Defence: 720 uah
Bakelite/Surplus steel: 220 uah
Those numbers are from current in stock mags from https://pancer.com.ua they have pretty decent reviews so I assume their prices are fair market value.