For those that try to poo poo trigger jobs saying their 365 is buttery smooth, you fail to realize the quality of triggers coming out of Sig varies significantly. I tried one out at a gun show and indeed the trigger was buttery smooth. But when they sold me one from their stock the trigger pull was gritty and almost eight pounds. After two returns to Sig there was little noticeable improvement. So I had an Mcarbo trigger installed. It was not buttery smooth...it was melted buttery smooth. My two points are that you might get a trigger on a Sig that is crappy. If you do Mcarbo will provide a quick solution.