The C&S Tactical 2 set is precision CNC machined from high quality. The hammer, sear and disconnector of this set improve the trigger pull over the standard factory trigger parts. The stainless steel offers more corrosion resistance over the standard carbon steel parts. All of the parts are heat treated to a Rockwell C hardness of 55-58 for long term durability. Cylinder & Slide parts carry a manufactures lifetime warranty against breakage to the original purchaser on un-modified parts.