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Posted: 8/1/2009 8:13:26 PM EST
OK, I've searched and searched and searched, but I have not been able to find a definitive answer to this question, so I'm going to go ahead and just ask, self-respect be damned. . . . here goes:

When installing the rear sight, should the "L" marking be visible from the rear when that aperature is up?

The only assembly manual I have is the Marine Corps A2 tech manual, so that's no help, and I'll be damned if I can remember how the sight was installed on the REAL M16s I was issued (too many moons ago). It seems only sensible (to me) that the "L" should be visible from the rear, but I haven't been able to find ANYTHING that states it plainly. Somebody please educate me!
Link Posted: 8/1/2009 9:53:10 PM EST
Yes.
Link Posted: 8/2/2009 6:37:58 AM EST
Link Posted: 8/2/2009 12:09:31 PM EST
IIRC it means long range, so it needs to be visible to the user
Link Posted: 8/2/2009 7:14:15 PM EST
Thanks bunches, guys. Now I can relax, because that WAS indeed the way I had installed it. That little roll pin through the windage drum was such a bugger to get driven in, I was having nightmares about having to do it again. I HAD found a photo in an old marksmanship manual that seemingly showed it the other way, but it made no sense to me that way, and I was praying that it was either a mistake or that I was looking at it wrong!
Link Posted: 8/2/2009 7:40:42 PM EST
I did my last one by starting the roll pin while the drum was in a vice. After it's started and held in place it is easier to line the pin up with the the hole in the screw. You don't have to fumble with the pin/drum/screw all at once.

Link Posted: 8/3/2009 2:58:40 AM EST
Originally Posted By Hetzer1:
...so I'm going to go ahead and just ask, self-respect be damned. . . .


The battle cry of ARFCOM/Retro!!!

They actually make a tool for this...I think it's called a pin-driver...

Link Posted: 8/3/2009 5:12:20 AM EST
Originally Posted By postino:

They actually make a tool for this...I think it's called a pin-driver...

http://i23.photobucket.com/albums/b390/FrogBait4/Misc/pindriver.jpg


Either that or a pecker checker.

[Sorry, I could not help it.]
Link Posted: 8/3/2009 6:18:28 AM EST
Originally Posted By VAAR:
Originally Posted By postino:

They actually make a tool for this...I think it's called a pin-driver...

http://i23.photobucket.com/albums/b390/FrogBait4/Misc/pindriver.jpg


Either that or a pecker checker.

[Sorry, I could not help it.]


Pecrometer??

(had to go 1 step further !@111!!!!!!!!!!!!!!!)
Link Posted: 8/3/2009 7:13:02 AM EST
Yes. I've found this is the most incorrectly assembled part on uppers I buy. They are often installed backwards by people that mount the sight with the "flush" end foreward (towards the muzzle) with the "indented" part facing the shooter. They must think it is a "hooded" aperature.
Link Posted: 8/3/2009 8:23:34 AM EST
I'm just glad I did it right. I figured that logically, it HAD to go that way, but then again, sometimes my idea of logic doesn't withstand contact with reality. Absent any concrete photographic or diagrametric (is that a word?) proof, I was worried.

By the way, VAAR, what manual did that diagram come out of?
Link Posted: 8/3/2009 1:44:21 PM EST
Originally Posted By VAAR:
Originally Posted By postino:

They actually make a tool for this...I think it's called a pin-driver...

http://i23.photobucket.com/albums/b390/FrogBait4/Misc/pindriver.jpg


Either that or a pecker checker.

[Sorry, I could not help it.]


Not big enough.

Link Posted: 8/3/2009 3:07:27 PM EST
Originally Posted By SSeric02:
Originally Posted By VAAR:
Originally Posted By postino:

They actually make a tool for this...I think it's called a pin-driver...

http://i23.photobucket.com/albums/b390/FrogBait4/Misc/pindriver.jpg


Either that or a pecker checker.

[Sorry, I could not help it.]


Not big enough.



It's for measuring diameter...not length...

Link Posted: 8/3/2009 3:44:16 PM EST
Yep, still not big enough...Aww I shouldn't have kept this thread going.
Let's get back to retro!b
Link Posted: 8/3/2009 3:48:04 PM EST
So it's only 3 inches,,some girls like it that fat.
Link Posted: 8/3/2009 4:18:31 PM EST
Originally Posted By Hetzer1:
I'm just glad I did it right. I figured that logically, it HAD to go that way, but then again, sometimes my idea of logic doesn't withstand contact with reality. Absent any concrete photographic or diagrametric (is that a word?) proof, I was worried.

By the way, VAAR, what manual did that diagram come out of?


Gee, I've had it for so long I can't remember where I got it.

Link Posted: 8/3/2009 4:47:01 PM EST
I use a punch that has a hole in the end to hold the pin to start it. My punch has a relief cut on one side especially for the A1 sight. Brownells sells this punch.
Link Posted: 8/4/2009 2:11:06 AM EST
I've been using a needle nose to start it and to press it in. Saw it in one of those helpful Brownell's vids.

The orientation issue is not helped by the A2 aperture having the countersink facing the shooter on the long range hole. Some people just align it the same way as their A2 has it.
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