I replaced my own on Glocks with a brass punch. I have other brands of night sights on my pistols but I wanted to pass along my experience before you purchase new sights. If I had to do it over again, I would only put night sights on the front sight. I have three dot, straight eight and the single front night sights. I am changing all to the single front. The back sights are often brighter than the front sight because they are closer to your eye. My eye automatically picks up the brightest (rear) sight then I have to transition to the front sight. I am eliminating this problem by going front sight only. I'm sure training could overcome this but I don't have the time.