This kit includes: 1- Slidefire Solutions SSAR-15 SBS Stock Kit 1- CMC AR15 Curved Tactical Trigger 1- KNS Precision, Inc. M&P15-22 Non-Rotate Trigger Hammer Pins Gen 2, Black Everything you need to make your M&P15-22 rifle run with the big boys all in one package at a great price. All products products in this package are 100% Texan!!!