I own a four screw k-22 8 3/8 that has a front patridge sight. Also back sight does not have outline. i want to do something other than nail polish to have colored sights. I have seen sights with a red cube or with a gold dot posted here before. Can this be done to my sight without any permanent damage to gun if i want to put it back to original some day? considered having S&W put a red ramp on but i am afraid of original pin being messed with. Any good ideas out there. I plan to use as a shooter but its a very clean gun. I don't want to ruin its past.