History of Primary Honing

Primary Honing is the 2-piece Iron Battalion Set bonus. It is passive and active whenever two pieces are worn: it increases handling and reload speed for Primary ammo weapons, and deals increased damage against non-boss combatants, scaled by your Weapons stat. The 4-piece bonus is Supercyclical, which refunds Super energy when your Super ends after final blows made during it. The set comes from Iron Banner and exists for Hunter, Titan and Warlock, including the Iron Battalion Bond.