Editing Reticle (section)

====Illuminated reticles====
Reticles may be illuminated, either by a plastic or [[fiber optic]] [[light pipe]] collecting ambient light or, in low light conditions, by a [[battery (electricity)|battery]] powered [[LED]]. Some sights also use the radioactive decay of [[tritium]] for illumination that can work for 11 years without using a battery, used in the British [[SUSAT]] sight for the [[SA80]] (L85) assault rifle and in the American [[Advanced Combat Optical Gunsight|ACOG (Advanced Combat Optical Gunsight)]]. Red is the most common color used, as it is the least destructive to the shooter's [[night vision]], but some products use green or yellow illumination, either as a single colour or changeable via user selection.