Features: —— Chrome molybdenum alloy steel made sector gear —— High strength, not easy to deform —— CNC machining, enhanced gear to be more durable and bearing stronger spring —— New axis design, improve gear concentricity —— Integration of axis & gear instead of cooper shaft guide, more durable —— Lower electricity consumption & lower noiseSpecifications:Material:SteelCNC MachiningSHS Super high Speed GearsetSuitable spring: M110-M150G.W.: 80gFits the SR25, CA SV