Steels are U-8 or U-8A for Kizlyar, the only real substantive testing I've seen is below. The NCC is D2. As far as Kizlyar vs Kizlyar Supreme, I've always been under the impression that Kizlyar was the OG and Supreme was cheaper and more derivative, but it's hard to say because there's so little english language info.How's the relative quality? I remember reading somewhere that there are a couple different companies under the Kizlyar name that are made to very different standards.
Isn't MAXJEG from St. Petersburg?I seem to recall a thread a few months back where someone from St. Petersburg weighed in on K vs KS, claiming he was a manager of KS. Perhaps try to find that thread, shouldn't be too hard by keyword.
I already answered the same question.
It’s worth mentioning separately about NCCustom. In Russia there is a large knife company, Empire of Knives. Here is their website: https://www.eknives.ru/
It owns the brands.
Northern Crown and Basko (production in St. Petersburg and Izhevsk, domestic premium materials, jewelry, Russian, Chinese and European steels),
NCCustom (production in Izhevsk, also Chinese and European steels, Russian micarta, wood, G-10) and
Mr. Blade (manufactured in China). In terms of production quality, they are equal to or slightly higher than Kizlyar Supreme. Here is my knife, made at a factory in Izhevsk:
Of all three, these are the ones I like best. But they've been having problems with designs lately.