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Posted: 1/25/2006 11:34:58 AM EDT
I was sorting through some rear sight apertures and came across a strange one. I have pictures of it below. It has a large open aperature (larger than an A2 0-2 opening) and a small aperture with an L below it. Is this an M16A1 low light rear aperture for use with a tritium front?
Standard A2 is on the right in both pics  
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Posted: 1/26/2006 12:24:35 PM EDT
[#1]
Anyone
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Posted: 1/26/2006 4:57:05 PM EDT
[#2]
I am not sure but it kinda looks like it is made to put different sized aperatures in like a NM
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Posted: 2/6/2006 6:41:10 AM EDT
[#3]
I found out that this is a rear aperture from the old M16A1 Low Light Level Sighting System (LLLSS). It was to be used in conjunction with a tritium filled front sight post. My thanks to the person who sent me the info.
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Posted: 2/6/2006 6:52:17 AM EDT
[#4]
I thought those early 'glow in the dark' M16A1 sights were made using Promethium not Tritium.
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Posted: 2/6/2006 9:07:47 AM EDT
[#5]
I believe you are right. It is Promethium not Tritium. My bad 
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Posted: 2/6/2006 10:14:06 AM EDT
[#6]
No problem - just a bit of trivia. Though I wonder why they didn't stick with the Promethium sights. |
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Posted: 2/6/2006 12:50:28 PM EDT
[#7]
Because they could see the future was tritium?  har har
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