First of all I want to say I know that S&W makes some fine guns. But I will never own another one, because I promised their CS I would not. I also promised them I would tell every chance I got how I was treated after my Sigma blew up in my hand. I had bought my sigmaa from a guy at work that needed some money. He had shot it very little and also gave my 5 1/2 boxes of bullets he had for it. Anyway I shot it about 2mags no problems and stuck it in my truck.. One day my son wants to shoot so about the 3rd mag I have a round go off before it is fully chambered. We stopped and took it apart and cleaned it next week end try it again and again on the 3rd or 4th mag it did it again, this time it blew the mag out the bottom and a large piece of the polymer from across the top of my hand the frame also cracked on the other side. Called and emails the S&W was told that since I didn't buy it originally I was out of luck, but I could send it in and they would dispose of it. With the frame cracked and hole it there is no fixing it because your serial number is on the frame.