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9/22/2017 12:11:25 AM
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


Link Posted: 1/26/2006 12:24:35 PM EDT
Anyone
Link Posted: 1/26/2006 4:57:05 PM EDT
I am not sure but it kinda looks like it is made to put different sized aperatures in like a NM
Link Posted: 2/6/2006 6:41:10 AM EDT
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.
Link Posted: 2/6/2006 6:52:17 AM EDT
I thought those early 'glow in the dark' M16A1 sights were made using Promethium not Tritium.
Link Posted: 2/6/2006 9:07:47 AM EDT

Originally Posted By Forest:
I thought those early 'glow in the dark' M16A1 sights were made using Promethium not Tritium.



I believe you are right. It is Promethium not Tritium. My bad
Link Posted: 2/6/2006 10:14:06 AM EDT

Originally Posted By CAR-AR-M16:
It is Promethium not Tritium. My bad



No problem - just a bit of trivia. Though I wonder why they didn't stick with the Promethium sights.
Link Posted: 2/6/2006 12:50:28 PM EDT

Originally Posted By Forest:

Originally Posted By CAR-AR-M16:
It is Promethium not Tritium. My bad



No problem - just a bit of trivia. Though I wonder why they didn't stick with the Promethium sights.



Because they could see the future was tritium? har har
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