Thread: Night Sights
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Old March 24, 2013, 11:14 AM   #7
thedudeabides
Senior Member
 
Join Date: August 22, 2012
Posts: 981
The half life of Tritium is 12.3 years. I think I can afford to replace my night sights every 10 years, assuming they weren't put in at peak freshness to have a gun that's night-ready out of the safe.
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