Meprolight Nightsights Value??
I am wondering the value of Meprolight nightsights that are adjustable for a Colt Gov't model w/.055 tenon front sight would be?? Also an adjustable set of Meprolights for the King Kobra?? I have the chance to buy these very cheap on Ebay($15.00)and always thought they sold for more like $75-$90!!Anyways...there is some very good deals on new Meprolights under seller atlanta_cracker on Ebay.Seems like most of them are under $20.The big sale ends Saturday,should i take out a loan and buy them all?? Hhahaha!!!
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They are kept bright by radioactive tritium; after a while they start to dull (the radioactivity "runs out"--I forget what the exact half-life is).
I would only buy tritium nightsites direct from the manufacture or a reputable dealer who keeps his inventory "fresh". Even if these on eBarf are "new" they could be "old stock" and won't last as long as new ones.0 -
With them selling for under $20.00 a set, how could one go wrong with a 12 year manufactures warranty?? 0 -
I don know this but there might be some kind of catch to the warranty like "Must be purchased from authorized Mepro-Light dealer,and returned with original receipt from dealer before warranty can be validated".If someone is selling somethig that usually sells for $70-90.00 for $20.00 there might be something wrong.But if you have $20.00 you wont miss why not.
Eric S. Williams0 -
quote:
They are kept bright by radioactive tritium; after a while they start to dull (the radioactivity "runs out"--I forget what the exact half-life is).
I would only buy tritium nightsites direct from the manufacture or a reputable dealer who keeps his inventory "fresh". Even if these on eBarf are "new" they could be "old stock" and won't last as long as new ones.
Tritium is actually Radioactive Hydrogen. And the radioactivity isn't what fades, that would take millions of years. Its actually the container the hydrogen is in, it leaks out.
Edited by - leeblackman on 07/30/2002 23:48:440 -
Should also mention that if they are used sights, meaning they were taken off of something, they aren't worth anything. Somtimes they cannot be refitted onto a gun.
As far as adjustable sights, the only tritium adjustable sight I would trust on my gun would be Bo-Mar's.
If I'm wrong please correct me, I won't be offended.
The sound of a 12 gauge pump clears a house fatser than Rosie O eats a Big Mac !0 -
quote:
Tritium is actually Radioactive Hydrogen. And the radioactivity isn't what fades, that would take millions of years. Its actually the container the hydrogen is in, it leaks out.
Tritium: Isotope of hydrogen, chemical symbol written as 3H or T, with atomic number 1 but atomic weight approximately 3. Its nucleus contains one proton and two neutrons. Tritium is radioactive (see radioactivity), with a half-life of 12.32 years. Its occurrence in natural water at 10-18 the amount of natural hydrogen is probably due to the action of cosmic rays. Some tritium is used in self-luminous phosphors and dials and as a radioactive tracer in chemical and biochemical studies. Nuclear fusion of deuterium and tritium at high temperatures releases enormous amounts of energy. Such reactions have been used in nuclear weapons. See also heavy water.
With a half-life of 12.32 years, it won't be radioactive for anywhere near "millions of years".
Tritium sights are NOT using "tritium gas" in "a container"--the tritium is "embedded" within a solid "glass" and generally will not "leak".0 -
Explain to me what a half life is and how its used. And how many isotopes does hydrogen have, how many of them are radioactive. And also explain to me what an isotope is.
If I'm wrong please correct me, I won't be offended.
The sound of a 12 gauge pump clears a house fatser than Rosie O eats a Big Mac !0 -
quote:
Explain to me what a half life is and how its used. And how many isotopes does hydrogen have, how many of them are radioactive. And also explain to me what an isotope is.
Is this a test? I'm tired and really need to get to bed. But if you insist, a "half life" is a term used to explain radioactive decay--radioactive elements emit alpha and beta particles and gamma radiation from their nuclei and in doing so are actually changing in atomic structure--sometimes the decay involves an actual change in the element itself (but that's a whole 'nuther subject). The time it takes for "half" the atoms in a particular radioactive element sample to complete their "decay" is know as that element's "half-life".
Hydrogen has two "common" isotopes, dueturium and tritium. (There are others but their half-life is measured in nano-seconds so I won't talk about them here...)
An "isotope" is just an element with extra (or fewer) nuetrons in its nucleus. The number of protons in the nucleus determines what element it is. Isotopes occur in nature, but more exist as a result of that wonderful machine called the cyclotron...
I'm tired (and am kinda rusty on the subject); I'll check back in the morning to see if I get a passing grade.0 -
Woo........he really *IS* the competentone. 
Well done!
Merc
NO! You may not have my guns! Now go crawl back into your hole!
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"Tolerating things you may not necessarily like is part of being free" - Larry Flynt0 -
Sorry competentone, I was really just trying to learn something new. Thanks for posting that. I'm always curious to learn about stuff like that, just don't have time for college at this time.
I absolutely admit I stand corrected.
If I'm wrong please correct me, I won't be offended.
The sound of a 12 gauge pump clears a house fatser than Rosie O eats a Big Mac !0
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