Good old rugged, used them in the military and bought one when I got out. Very accurate, beyond durable (tough as nails), use day or night without a light, can use any where in the world without worry of binding up with needle drop. Best investment you can make and will last you for as long as we keep our earths polarity.


http://www.uscav.com/Productinfo.aspx?productID=7587&TabID=548


Military Lensatic Tritium Compass

NSN: 6605-01-196-6971

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Failure is not an option!
USMC Jungle Environmental Survival Training PI 1985