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Old 06-26-2019, 07:23pm   #4
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Hard to tell from your picture if they were night sights or if the paint just faded.

Night sites have a life expectancy
How long do tritium night sights last?
12 years
The tritium that is in the lamps of your sights has a half-life of 12 years, meaning you can expect your sights to gradually dim. A lot of manufacturers will replace the lamps for a nominal fee. I'm pretty sure Trijicon will, and Meprolight probably does as well.Feb 11, 2010

What are night sights made of?
In a tritium night sight (such as the ones made by Trijicon), a glass tube is coated with a phosphorescent material and filled with a tiny amount of tritium. Tritium is a radioactive isotope of hydrogen, with a nucleus containing two neutrons (whereas a “normal” hydrogen atom's nucleus has no neutrons).Feb 8, 2008
If you wish to paint, clean with acetone ( finger nail polish remover ) and using a toothpick, dab a drop of your favorite color(s) on the indents. Hobby paint and finger nail polish work. It's usually easier to find bright colors in finger nail polish ( more places to purchase )
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