Crappy sight - Mission First Tactical Polymer Flip Up Rear Sight, w/ Windage Adjustment Mounts

This sight came on an AR that I bought and knew almost immediately that I would be replacing it with a better rear sight. The plastic is cheap and flimsy; I'm not the strongest guy, but I can grab it and flex/bend the entire sight. Could probably snap it in half if I desired. The worst part about this sight is that fact that you cant even see through it when in direct sunlight or a lit room. There's a glare that goes around the sight right that makes it nearly impossible to see the front sight or your target. I cant see any practical use for this rear sight due to the poor visibility in direct light alone.

Invest in a better sight.