Ooops! Bought a brand new Gen 4 G19 the other day and had the shop throw some HiViz fiber optics on it. Thought it looked great as I have seen these sights at the range. Get home, turn off light, nothing. Nada, zilch. Nothing like wasting $100. I am hoping they will take them back. What should I get for true night sights without all this fiber optic hocus pocus crap? Thanks.