The theme of today's picture of the day? Night sights. Below is the Heinie Straight Eight sight pair on my Glock 20. While it rises a bit higher than standard Glock sights (more in line with a 1911), it provides fast target acquisition, even in low (and no) light. It's a quality aftermarket upgrade that can be installed at home with just a brass punch and some time. Recommended by the Ann Arbor Gun Guys!