I have handled both, fired the Sigma, dry the 9c. The 9c is nicer looking and has optional magazines for concealed carry and range time. It's the supreme winner here in my eyes. The triggers are both nice, I liked the 9c a bit better, more Glock-like in operation amd very smooth, much preferred. Though for a DAO yhe Sigma was very nice triggerwise. I stick to my guns firmly here, however nice they both may be, the SR9C is the bees knees.