If look at the details regarding the different pieces above, something else to keep in mind is that A, B, and C are at different amounts of progress. The gear seems to level up, which is indicated by the rank portion, and in the examples given are at 6, 5, and 2 respectively. Would need to see what ends up at the farther parts of the upgrades, as it looks like these go up to Rank 7 at least.