This thing is great! - TruGlo Home Defense Fiber Optic Universal Shotgun Sight 12-20 Gauge Green TG93HA

I have a 20 gauge Mossberg cruiser with a short barrel that has a tiny (almost invisible) brass bead. I saw this device advertised and decided to give it a try. I questioned how well it would grip my barrel, but it snapped right on and is firmly held in place by the factory bead in the notch at the front. The plastic sleeve seems strong, but I worry about the durability of the long the light pipe. This thing is bright and easy to pick up. In the dark it even seems to absorb the light from my weapon-mounted light. The reason I withheld the fifth star is because of my limited experience with it. So far, I absolutely love it!