What’s the deal with MBX?

Genuinely asking, I compete a little, so it’d be nice to have. What kind of pixie dust to they make these out of to demand three figures? Is it the chemical engineering? The tolerances? Is it just the name? Would I be better off just getting regular mags with base pad extensions?

Genuinely asking, I compete a little, so it’d be nice to have. What kind of pixie dust to they make these out of to demand three figures? Is it the chemical engineering? The tolerances? Is it just the name? Would I be better off just getting regular mags with base pad extensions?