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Posted: 7/4/2016 8:40:39 PM EDT
EXPEDIENT Night Sights for the Survivalist for abt $9

Here's something I did today in abt an hour incl figgering everything out...

Got one of those Bivy Markers that use a green Tritium Capsule about 5 years ago thinking about doing this

The cost to have some outfit do this is about $300 for this gun...  

I can include more text later ---mostly pictures now... Short of time...



Drilling the original sight -still on slide, used .189 drill. Clamped in vise in rag...






Removing capsule





Deburring hole w/ center drill -then degrease with solvent





Capsule on mag






Squeezed Fish tank sillycone in from front, used the .093 drill from other side to push out a little to fit capsule, installed capsule and let set up  --centered.






Centering capsule in adhesive...







Apply whitest paint [used paint stick] and carefully let flow around capsule. Probably will change to white epoxy... Putting paint in a syringe and using a 30 ga needle helps...






Business end...

Front sight is so bright it almost saturates the camera...







Link Posted: 7/4/2016 8:48:08 PM EDT
[#1]
Here's how to remove a working tritium capsule from a useable sight, heating with a soldering gun, and pressing out thru the access hole.

Note the eye-loupe we've talked abt on the SF many times?  Don't think of doing this w/out one  ---even the cheap H-F one if you can't swing a Behr from eBay

#59 drill is pressing from the right and the gooey capsule is coming out on the left  ---It looks black in color from the heat-sensitive adhesive Trijicon uses.







Link Posted: 7/4/2016 8:52:58 PM EDT
[#2]
This mod looks nice and works GREAT!!!

Tritium is nice and bright and compared with a 6 YO sight is arguably brighter.


I'm going to replace the paint stick white with some epoxy white.

The rear sights got touched up too...  Much better. Compared to my SO's.

I personally see no need  to convert the rear sights but could easily do it.


Link Posted: 7/5/2016 10:59:43 AM EDT
[#3]
That's genius and we need more thinking like this.  I wonder if one of those little vials would illuminate an old com-bloc scope with a dead internal light.

Where do you find those tritium vials?
Link Posted: 7/5/2016 11:26:46 AM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

Where do you find those tritium vials?
View Quote


amazon/ebay
Link Posted: 7/5/2016 12:11:45 PM EDT
[#5]
Link for cheapest place to get the vials if anyone finds it.
Link Posted: 7/5/2016 5:14:32 PM EDT
[#6]
The capsules are occasionally on sale at Amazon but they get shut down routinely,
as tritium capsules, glow rings, trail markers, etc aren't legal to import or sell in the US
(NRC specifically excludes what they call "novelty use.")

It seems easier to get the big capsules (22mm long) than the little ones night sights use.

Fortunately it's still OK to own them AFAIK. I lost mine when the boat capsized.
Link Posted: 7/5/2016 6:51:13 PM EDT
[#7]
That's a clever trick. I'll have to look into that for some "oddball" guns I have.
That said, the 5.7 - you have the matching P90 to go with it? Great combo, right?
Link Posted: 7/6/2016 1:59:09 AM EDT
[#8]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
That's a clever trick. I'll have to look into that for some "oddball" guns I have.
That said, the 5.7 - you have the matching P90 to go with it? Great combo, right?
View Quote



No...



Link Posted: 7/6/2016 3:58:22 PM EDT
[#9]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
That's a clever trick. I'll have to look into that for some "oddball" guns I have.
That said, the 5.7 - you have the matching P90 to go with it? Great combo, right?
View Quote


Unfortunately the P-90 isn't civilian legal in the U.S.A. it's post 1987(?) and thus not on the machine gun register. ??

I have a PS-90 and it is a blast to shoot.  I had the great fortune to shoot a P 90 once that was a dealer sample.
Link Posted: 7/6/2016 4:14:30 PM EDT
[#10]
I was actually referring to the PS90...I'd pay good money for a real p90
Link Posted: 7/6/2016 10:32:58 PM EDT
[#11]
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Quoted:
I was actually referring to the PS90...I'd pay good money for a real p90
View Quote



No to the PS90...

Doesn't fit in our apps...


Link Posted: 7/6/2016 10:36:29 PM EDT
[#12]
Folks should think outside the box re adding night sights.

There are 'snap' vials that aren't tritium that last abt 12 hours and are tiny.

Also, for expedient applications, the light source can be attached many 'unconventional' ways, like clear epoxy or silicone adhesive, maybe incorporating a protective 'shield' for the source.

Link Posted: 7/7/2016 12:30:27 PM EDT
[#13]
In a face off between a P90 and a Thompson 1921A...

Which would prevail?





Link Posted: 7/7/2016 1:35:34 PM EDT
[#14]
Oh no! You didn't!
Link Posted: 7/8/2016 9:31:13 AM EDT
[#15]
Nice job, OP.
Link Posted: 7/8/2016 9:40:06 AM EDT
[#16]
Like I don't have enough projects! Thanks alot EXPY
Link Posted: 7/26/2016 2:59:50 AM EDT
[#17]
Bump for the NeverT gang...


Link Posted: 7/26/2016 3:13:10 AM EDT
[#18]
There used to be a guy on Candepower forums who had a good selection.~6 each.    
Dutch or something.
Link Posted: 7/26/2016 3:19:43 AM EDT
[#19]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
There used to be a guy on Candepower forums who had a good selection.~6 each.    
Dutch or something.
View Quote


Plenty bare ones on eBay, looks to be about the same price and size as I used...





Link Posted: 7/26/2016 1:53:29 PM EDT
[#20]
Hint of what to search for?
Link Posted: 7/26/2016 4:30:08 PM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Hint of what to search for?
View Quote




tritium capsule, vial, tube, something like that
Link Posted: 7/26/2016 8:41:33 PM EDT
[#22]
Discussion ForumsJump to Quoted PostQuote History
Quoted:




tritium capsule, vial, tube, something like that
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
Hint of what to search for?




tritium capsule, vial, tube, something like that


Also "glowring" for some reason, and self-luminous for obvious reasons.

I think "tritium vial" has the most hits on amazon.
Link Posted: 9/8/2016 12:06:45 PM EDT
[#23]
eBay has a bunch up now...

Link Posted: 11/3/2016 9:46:49 PM EDT
[#24]
Have been using the front sight in the evenings sometimes and although the rear sight isn't mod'ed yet, the tritium front sight alone seems pretty useful...

Link Posted: 11/3/2016 10:06:43 PM EDT
[#25]
I am looking on Amazon. Is it really $25 for one little 1.5x5mm vial???
Link Posted: 11/3/2016 11:46:22 PM EDT
[#26]
I got some guns with dead trijicon NS...might give this a stab on one of them.
Link Posted: 11/4/2016 8:56:01 AM EDT
[#27]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Have been using the front sight in the evenings sometimes and although the rear sight isn't mod'ed yet, the tritium front sight alone seems pretty useful...

View Quote


Mind testing it with nods? I'm thinking it'll be to bright..
Link Posted: 1/3/2017 12:40:17 PM EDT
[#28]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Mind testing it with nods? I'm thinking it'll be to bright..
View Quote



Yep, I tested the Tritium vials with NODs and they are too bright without some sort of masking.


.
Link Posted: 1/3/2017 8:47:46 PM EDT
[#29]
Curious about what epoxy you used.  I have two front sights with good tritium that need paint put in around the vial.
Link Posted: 1/4/2017 2:41:52 AM EDT
[#30]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Curious about what epoxy you used.  I have two front sights with good tritium that need paint put in around the vial.
View Quote



Talked with someone at a hobby shop who said that to get the best and brightest white to show up -you have to apply some other paint first but I forget what he said to do.

I think I also tried appliance white epoxy from any hardware store...


.
Link Posted: 3/2/2017 3:14:22 PM EDT
[#31]
Has anyone tried this yet?
Link Posted: 4/28/2017 3:08:49 PM EDT
[#32]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I am looking on Amazon. Is it really $25 for one little 1.5x5mm vial???
View Quote
Look on ebay, usually the best $$$ for most anything is there...
Link Posted: 4/29/2017 9:10:58 PM EDT
[#33]
Dumb question. What happens if the vial breaks? Is not the tritium gas a strong alpha emitter? It can probably do some damage if it get inhaled. I'm not an expert but still remember a few things from the middle school physics class.
Link Posted: 5/1/2017 12:12:36 PM EDT
[#34]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Dumb question. What happens if the vial breaks? Is not the tritium gas a strong alpha emitter? It can probably do some damage if it get inhaled. I'm not an expert but still remember a few things from the middle school physics class.
View Quote
I broke one...

I'll let you know...

Link Posted: 6/26/2017 5:20:26 PM EDT
[#35]
Bumping to keep links on other threads hot...
Link Posted: 6/27/2017 2:35:49 PM EDT
[#36]
Brilliant!
Link Posted: 8/26/2017 11:06:52 AM EDT
[#37]
Thanks!
Link Posted: 8/26/2017 12:21:18 PM EDT
[#38]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I broke one...

I'll let you know...

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
Dumb question. What happens if the vial breaks? Is not the tritium gas a strong alpha emitter? It can probably do some damage if it get inhaled. I'm not an expert but still remember a few things from the middle school physics class.
I broke one...

I'll let you know...

Are you Dead yet?
Link Posted: 8/26/2017 7:37:15 PM EDT
[#39]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



Are you Dead yet?
View Quote
I'm glowing!
Link Posted: 10/20/2017 3:15:00 AM EDT
[#40]
Something strange is going on with the tritium vial on the 5-7.

When I tested some of the vials w/ NV, they were bright, when focused, but I have various brands from various sources.

I've done some more experiments and the vial on the 5-7 isn't as bright to the eye or the NV as before.

It appears the photo cathode on the tube isn't as sensitive to the greenish glow as a similar brightness white or red [to the naked eye] dim light in the distance.

Looks like I have some work to do to resolve this, and will try some other tubes of other types of devices.

I tried various gain settings. Also, when focused, let's say to the distance one might spot or engage [say 10 feet] a bear, [not much different from the infinity setting], there is a small luminous circle, and it would seem that putting the impact point in the center would hit the target, but haven't fired with NV and these sights.

The circle varies when the angle is depressed or raised and might be an indicator re the rear sight elevation.
Link Posted: 10/24/2017 10:03:27 AM EDT
[#41]
remember to demil the old ones outside, the tritum is a alpha radiation emitter, do not breath it, it will not clear out of your body for some time and just gives your system a dose of unhealthy radiation.
if you crack a new one stop breathing and walk away for a while, keep good air flow in your work shop, keep the kids away.
Link Posted: 10/25/2017 6:32:54 PM EDT
[#42]
great hack

you might try bedding it with day glow paint, the white/green may down convert to orange or red and show up better in your scope.
Link Posted: 10/25/2017 7:12:29 PM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
great hack

you might try bedding it with day glow paint, the white/green may down convert to orange or red and show up better in your scope.
View Quote
Rustoleum has a bright reflective chrome spray paint I may try embedding it in as well...

Still haven't looked at figuring out why it's dim.
Link Posted: 10/25/2017 7:16:38 PM EDT
[#44]
Tritium (H3) undergoes beta decay by giving off a 5.7 keV beta particle. In that quantity, it's relatively innocuous but I would still be inclined to clean the work area and wash up if I smashed or otherwise broke a vial.
Link Posted: 10/25/2017 8:42:51 PM EDT
[#45]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Tritium (H3) undergoes beta decay by giving off a 5.7 keV beta particle. In that quantity, it's relatively innocuous but I would still be inclined to clean the work area and wash up if I smashed or otherwise broke a vial.
View Quote
LOL, it's a gas at STP...

Some of you worry abt the most trivial of things...



Not limited to just you Pirate...

[If all Pirates worried so much, they wouldn't have had much of a past...]
Link Posted: 10/25/2017 9:11:14 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
LOL, it's a gas at STP...

Some of you worry abt the most trivial of things...



Not limited to just you Pirate...

[If all Pirates worried so much, they wouldn't have had much of a past...]
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
Tritium (H3) undergoes beta decay by giving off a 5.7 keV beta particle. In that quantity, it's relatively innocuous but I would still be inclined to clean the work area and wash up if I smashed or otherwise broke a vial.
LOL, it's a gas at STP...

Some of you worry abt the most trivial of things...



Not limited to just you Pirate...

[If all Pirates worried so much, they wouldn't have had much of a past...]
If I hadn't been paid to take action and write procedures about things outer people worried about, I wouldn't have made nearly as much money in nuclear power, DoE and DoD!

ETA, tritium swaps back and forth in liquid and gas because it's essentially a hydrogen molecule. That's what makes it so damn difficult to recover.
Link Posted: 12/23/2017 11:57:31 PM EDT
[#47]
Here's picture thru NV of the tritium sight. Not too good but what I got, the bright foreground is white storage trays.

The dot is just to the left of the chair back.

It's plenty good enough to hit a bear in the head at threatening distance.

The NV needs to be focused at some distance between near target and pistol. A laser would be a lot better, but I'm not putting one on this gun for its present application.

Link Posted: 1/31/2018 2:41:49 AM EDT
[#48]
Cool!
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