If and a big If, I were to buy a 40 cal. I would definitely get the Ruger SR9C. Yes a little bigger, but there are some trade off's in every thing. I have the 9mm and it is a extremely MILD shooter. Easy to convert the 10 rd magazine to a 17 rd. And that 17 rd magazine makes it into a nice size duty gun. And it has great build quality. I like DAO, but this striker fired gun has a great trigger if you like light striker fired guns. AND not mention great DEAL. (at least before the Virus) around $300.00