If you call CGW they can get you a FO front that will work with the stock rear, or a front/rear set up: FO front and black rear. Last year I called them looking for a front FO only and they said they had one. Then they offered the two sight set up which I took. The very first time I shot the pistol was at a CCW class with those sights, which brings me to an observation. I never once saw the FO while I was shooting, but shot well. The FO works well for me if I'm slow firing at stationary targets. Also the pipes come in two diameters and I would get the slightly larger one if I did it again. Not a bad problem, just older eyes talking.