Originally Posted by SSGN_Doc
Trijicon uses tritium with a 12.3 year half-life. Getting the tritium changed out by Trijicon costs about $300.
Get an Aimpoint with a 50,000 hour battery life (that's running time, switched on. About 5 years.). Change your batteries every couple of years and it still wouldn't cost as much as the Trijicon and you wouldn't have to worry about them burning out.
Trijicon ACOG and reflex are tritium powered and never need batteries.
Sure, they cost a little more, but when your life is on the line,