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X-Ray sights or Trijicn HD?

This is a discussion on X-Ray sights or Trijicn HD? within the SIG Sauer Pistols forums, part of the SIG Sauer Forum category; Originally Posted by speedmonkey Correct. The X-Rays are marked with model TG-H3 front and rear on all the sights. I stand corrected. Poor choice of ...


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Old 04-21-2016, 11:50 AM   #16
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Quote:
Originally Posted by speedmonkey View Post
Correct. The X-Rays are marked with model TG-H3 front and rear on all the sights.
I stand corrected.

Poor choice of phrase, I'm actually sitting at my computer.
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Old 04-22-2016, 12:34 AM   #17
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The X-rays may very well be made by Truglo, but they look like an exact copy of the trijicons. I had read on trijicons website that the yellow hd sights glo longer than the red. I wonder if it has to do with the phosphorous paint? If that is true then I wonder if the green X-ray sights fall in between?
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Old 04-22-2016, 06:11 AM   #18
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Prior to my current favorite choice of sights, I had the Trijicon HD Orange sights on everything. Super quick to pick up for my eyes, much better than yellow. Now, I'm all about the Dawson Precision fiber optic red front sight and black rear. I use a weapon light on everything, so I don't "need" the night sights. The fiber optic is easy to pick up and seems like a red dot. Just another option to consider.
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Old 04-22-2016, 06:19 AM   #19
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I've read some say that they added the ameriglo Spartan sights to their sigs, but they only make them for the XD that I can see. Are sig and xd sights interchangeable?
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Old 04-22-2016, 06:28 AM   #20
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I have HDs in both of my P229s and while they are great for sight acquisition they're not the greatest for target shooting.
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Old 04-22-2016, 12:33 PM   #21
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I have HDs in both of my P229s and while they are great for sight acquisition they're not the greatest for target shooting.
Why is this?
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Old 12-11-2016, 06:09 AM   #22
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Originally Posted by Bourget117 View Post
So which one is it?? Trijicn or Tru-Glo is the manufacture of X-Ray sights??
TruGlo. Stamped on the left side of both front and rear is TG-H3.

https://www.gunsamerica.com/blog/truglo/

(Now, if I could only find the TG-H3 FRONT sights to put on my other pistols?)
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Old 12-11-2016, 06:47 AM   #23
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I've found the corners of the rear Trijicon HD to be kind of sharp, which is an issue with IWB. The X-Ray sights don't pose that problem for me.
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Old 12-11-2016, 08:39 AM   #24
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...I had read on trijicons website that the yellow hd sights glo longer than the red. I wonder if it has to do with the phosphorous paint? If that is true then I wonder if the green X-ray sights fall in between?
Tritium is tritium. It has the same half-life regardless of the color of phosphorescent paint coating the inside of the vial.

Human eyes are far more sensitive to green and yellow wavelengths of light than they are to orange and red.

The reason people think that yellow go longer than red is that the human eye is less sensitive to red wavelengths. So as the tritium gets weaker, due to its half-life, the light-emissions from in the red wavelengths is less and the human eye cannot pick it up as well.

It is the same reason that green lasers are visible during the day while red ones are not, even though the green lasers have the same max output by law than the red lasers. The human eye is far more sensitive to green than red.

Some people think that red and orange are easier to "pick up" but they are really basing their judgement on the contrast they are seeing with the "backdrop" with which they are using the sights. This might be the types of targets that they prefer to use (e.g. black silhouettes or black iron targets) or darker vegetation and lighting in which they are located when hunting the types of game they like to hunt.

There are different factors that can contribute to the brightness and life of tritium sights between manufacturer and within the same brand and even within the same model of sights.

However, with the name brands that we all know, I believe that these variables are exceptionally small and would never be noticeable. Nevertheless, here are some off the top of my head:

The size of the vial affects the amount of tritium that they can hold => the amount of tritium in the vial affects the half-life => the half-life affects the usable life of the sights.

The efficiency and consistency of the manufacturing process can affect whether each sight has the same amount of tritium as the next sight which affects whether one sight of the same brand will live as long as the next sight of the same brand. The consistency in the manufacturing of the vial itself - size and wall thickness - also affect how much tritium it will hold.

Here is a graphic showing the wavelengths of maximum sensitivity of the human eye. The top of the curve is where maximum sensitivity is located.

Attached Images
File Type: png Eye-sensitivity-chart.png (99.9 KB, 267 views)

Last edited by GoneBallisticInAlabama; 12-11-2016 at 08:44 AM.
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Old 12-11-2016, 09:31 AM   #25
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That is great stuff -- thanks Bama
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Old 04-06-2017, 10:27 AM   #26
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Quote:
Originally Posted by GoneBallisticInAlabama View Post
Quote:
Originally Posted by Bourget117 View Post
...I had read on trijicons website that the yellow hd sights glo longer than the red. I wonder if it has to do with the phosphorous paint? If that is true then I wonder if the green X-ray sights fall in between?
Tritium is tritium. It has the same half-life regardless of the color of phosphorescent paint coating the inside of the vial.

Human eyes are far more sensitive to green and yellow wavelengths of light than they are to orange and red.

The reason people think that yellow go longer than red is that the human eye is less sensitive to red wavelengths. So as the tritium gets weaker, due to its half-life, the light-emissions from in the red wavelengths is less and the human eye cannot pick it up as well.

It is the same reason that green lasers are visible during the day while red ones are not, even though the green lasers have the same max output by law than the red lasers. The human eye is far more sensitive to green than red.

Some people think that red and orange are easier to "pick up" but they are really basing their judgement on the contrast they are seeing with the "backdrop" with which they are using the sights. This might be the types of targets that they prefer to use (e.g. black silhouettes or black iron targets) or darker vegetation and lighting in which they are located when hunting the types of game they like to hunt.

There are different factors that can contribute to the brightness and life of tritium sights between manufacturer and within the same brand and even within the same model of sights.

However, with the name brands that we all know, I believe that these variables are exceptionally small and would never be noticeable. Nevertheless, here are some off the top of my head:

The size of the vial affects the amount of tritium that they can hold => the amount of tritium in the vial affects the half-life => the half-life affects the usable life of the sights.

The efficiency and consistency of the manufacturing process can affect whether each sight has the same amount of tritium as the next sight which affects whether one sight of the same brand will live as long as the next sight of the same brand. The consistency in the manufacturing of the vial itself - size and wall thickness - also affect how much tritium it will hold.

Here is a graphic showing the wavelengths of maximum sensitivity of the human eye. The top of the curve is where maximum sensitivity is located.

Actually it's the paint they are saying glows longer in yellow not the tritium tube.
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Old 04-06-2017, 10:38 AM   #27
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Candy colored goodness!

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Old 04-06-2017, 10:40 AM   #28
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But wait, there's more!



Of them all, I dig the X-Rays most.

Last edited by Trave1ingEast; 04-06-2017 at 10:43 AM. Reason: spelling
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Old 04-06-2017, 11:59 AM   #29
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I have xrays in two legions and my p225. I just put trijicons in my Mk-25, p229, and two 320's.
Having shot both side by side, I prefer the Trijicon's hands down.

The sight picture is not as cramped as the x-rays or siglites.
The Trijcons HD's are about twice the height of the sig sights, have more space between the front and rear posts (which I like), and the rear sight has a flat profile (the xray is has rounded edges) which makes picking up elevation much quicker.

HOWEVER...
I put the xrays (from my p229) in my p225 because they are much lower profile, therefore less snaggable and better suited for concealed carry. They are a HUGE improvement over siglites.

That's my two cents. I just shot a video last week comparing the Sig sights and Trijicons and will throw it up on YouTubes as soon as I edit it.
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Old 04-06-2017, 03:52 PM   #30
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Quote:
Originally Posted by Nighthawk45 View Post
Actually it's the paint they are saying glows longer in yellow not the tritium tube.
I didn't say it was.

And the yellow paint doesn't.

My point was that the human eye is more sensitive to green and yellow wavelengths. Therefore, the human eye perceives that the yellow phosphorescent paint "glows longer" than other colors when, in reality, the human eye just "sees it longer" as it fades than it would other colors.
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Last edited by GoneBallisticInAlabama; 04-06-2017 at 03:59 PM.
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