Midnight bronze is just burnt bronze with graphite black in it. Both are usually readily available from the distributor. Unsure of the exact ratio mix, but im sure a bit of googling, or even emailing cerakote directly, will turn up the result. The importers will get midnight bronze of you're willing to wait a couple months (worst case). I know this, because I was going to buy some a couple months back. They just don't stock it in their usual stock. Talk to SLR coatings as they're the cerakote distributor for Australia.