Attention - extra parts may be needed - Apex Tactical Specialties Flat-Faced Forward Set Sear and Trigger Kit

If your M&P Pistol was made before June of 2011, you will need to purchase a a sear housing block assembly, as S&W changed size of sear plunger and spring after June 2011, from 1/16", to: 1/8". This trigger kit will only work with new sear block/plunger/spring. You will also need "S" or "H" trigger bar (S+H trigger bars were never made for M&P45, don't exist). Bar will be blank w/no "S" or "H" letter stamped into it if you need to replace it on M&P9, .40, Sig .357. If you have a Black Striker Assembly you will want to replace it with the newer Silver Striker Assembly, according to the makers of this product, Apex Tactical via email. I deducted a couple of stars for the hassle of having to research all of this. This info should be included in product description.