User blog comment:Flame2453/Survivor gear rarity/@comment-28738889-20161023143536

Yes, the gears do have differing degrees of rarity. It goes, in approximate order: SS, LC, LOA, and FW from easiest-to-hardest to obtain in whole. For individual gears, all the SS gears have the largest drop chance and are all about the same, then it becomes the two chest pieces and the LOA blade, then all of the head pieces, and then the Mace, Gauntlet, and Knives for the rarest of the sets.