Dropping this kit into your smith & wesson m&p will set the trigger break point farther forward than the factory trigger assembly, as well as significantly reduce the uptake and over travel.It produces a trigger pull very similar to that of a 1911 but in a polymer frame striker-fired pistol.The forward set trigger body is machined from aircraft-grade aluminum and black hard anodized to last a lifetime.The smooth-faced trigger comes assembled with a center pivoting safety.The forward set sear & trigger kit boasts a smooth trigger pull throughout the break.The kit comes with two (2) trigger return springs; one designed to produce approximately a 4.0 lbs trigger pull (silver spring), and one to produce a 5.0 lbs trigger pull (green spring).These two options give the end-user the ability to customize their trigger pull for their specific needs.Finish: BlackModel: Aluminum Forward SetMaterial: Aluminum