I went through a number of optics on my SR22 looking for the right one. The last red dot I had on there was the Vortex Strikefire. It was a nice reliable unit, you do need a riser or high mount for it though, at least I did Ultimately I wound up switching it out for a Bushnell AR223 1-4, I prefer having magnification. I also had the Sparc only it was on a shotgun, it too is a nice unit that would work well on the SR...