Ghost rings - Trijicon Bright & Tough RE04 Remington Night Sights for Remington Shotguns 870, 1100 & 1187

Work better in low-light than total darkness with a lack of ambient light source. Still obviously usable in the daytime as iron sights.
Pros: great for low-light
Cons: yellow is somewhat dim.

This review was written in the old system and had content requirements that are different than reviews written today.