The C&S Tactical 2 set is precision CNC machined from high quality. The matched hammer, sear and disconnector of this set improve the trigger pull over the standard factory trigger parts. The matched parts combined with the hammer spring and light pull sear give you a trigger pull that will yield a 4 pound (+ or - 1/2 lb) trigger pull. 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. Kit Includes: HammerSearDisconnectorHammer SpringLight Pull Sear SpringFeaturesCNC Machined Billet Stainless Steel or Steel in WhiteEach Part Hardness Tested4 Pound Trigger pull (+-1/2lb) Lifetime Manufactures Warranty