I just acquired a Ruger and, shooting in the basement about 10 meters, the fiber optic sights I find challenging, especially against an orange TargDot. The front bead about covers the black Diamond bull, making precise aiming difficult. I would much prefer standard irons. In a recent post here I asked what the barrel was like under the front sight? Was told it has a flat filed on it, much like Dianas with plastic front sights. I'm not sure but your barrel may require that in order for the sight to slip on. You might want to run it by Mike.