Instruct: Classify a given review as either positive or negative.
Query: HiViz Glock Front Sight - Works Great

I have bought 2 of these sights for my Glocks. I put one on a G20sf and one on a G30sf and like them better than the stock sights in daylight and in low light, but these are not night sights so they are no better in darkness. Easy to put on and you can replace the light tubes to green, red or white. If you want a improved front sight for a reasonable price this is it.