No offense meant to Lightstrider, but he is wrong. Maybe he meant it another way than what he wrote, but what he said is incorrect.
People will tape up the fiber optic line to occlude the amount of light entering the fiber because it can be too bright in certain conditions. Or if they want a brighter reticle at night, they can tape or secure a glow stick next to the fiber line for more artificial brightness to the reticle than the tritium alone can provide.
There is no exposed tritium vial in an ACOG, so there is no "tritium" to tape up.
There is nothing you can do to brighten the reticle than to put an ACOG out in the sun. Taping or occluding the fiber line only dulls the reticle, not brighten it....since you're blocking or decreasing the amount of light entering the fiber optic line.
People will tape up the fiber optic line to occlude the amount of light entering the fiber because it can be too bright in certain conditions. Or if they want a brighter reticle at night, they can tape or secure a glow stick next to the fiber line for more artificial brightness to the reticle than the tritium alone can provide.
There is no exposed tritium vial in an ACOG, so there is no "tritium" to tape up.
There is nothing you can do to brighten the reticle than to put an ACOG out in the sun. Taping or occluding the fiber line only dulls the reticle, not brighten it....since you're blocking or decreasing the amount of light entering the fiber optic line.

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