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1/25/2018 7:38:29 AM
Posted: 9/12/2003 7:59:03 PM EST
What one do I want if I need to co-witness an eo-tech? What other good back ups rear sights are out there?
Link Posted: 9/12/2003 8:06:59 PM EST
[Last Edit: 9/12/2003 8:08:54 PM EST by TREETOP]
Link Posted: 9/12/2003 11:52:14 PM EST
[Last Edit: 9/12/2003 11:54:20 PM EST by wyv3rn]
You probably want the #40A2. The horizon line sounds like a nice feature but in practice it seems to annoy/bother/screw up more people than it helps. Atleast that was the result of the "poll" I did here in the forums awhile ago. I have the #40A2 and I'm glad I went with it, originally I did want to try the horizon line.
Link Posted: 9/13/2003 6:31:31 AM EST
I bought the #40 and really like it. Just my chime in. Buy what works for you the best. A
Link Posted: 9/13/2003 10:52:20 AM EST
Here is another comparison photo. [img]http://www.thermaldynamics.com/pictures/%2340.jpg[/img] #40 [img]http://www.thermaldynamics.com/pictures/%2340a.jpg[/img]
Link Posted: 9/13/2003 11:13:38 AM EST
Hey Chen, Are you right handed and left eye dominant?
Link Posted: 9/13/2003 12:17:22 PM EST
nope, right hand and right eye, working on being ambi. Why do you ask?
Link Posted: 9/13/2003 5:39:54 PM EST
I noticed your #40 aperture moved way over to the right.I had mine moved way over to right as well because I'm left eye dominant and right handed.Maybe it just looks that way in the pic.
Link Posted: 9/14/2003 6:16:31 PM EST
Chen did you camo your SPR? if so let see some pictures. IPSC_GUY sends
Link Posted: 9/14/2003 7:03:32 PM EST
yeah, who/how did the camo?
Link Posted: 9/15/2003 1:27:02 PM EST
Eothech cowitness with #40: [img]www.angelfire.com/az2/sobrbiker883homepage/ar15/eo511cowitness.JPG[/img]
Link Posted: 9/15/2003 2:53:05 PM EST
will the #40a fit under an ACOG even though it doesnt have the horizon line cut?
Link Posted: 9/15/2003 11:43:20 PM EST
What exactly is a "horizon line"?
Link Posted: 9/15/2003 11:57:13 PM EST
[Last Edit: 9/15/2003 11:59:02 PM EST by SuperChicken]
look at the arms #40 on the left in this picture: [img]http://photos.ar15.com/ImageGallery/Attachments/DownloadAttach.asp?iImageUnq=15787[/img] see how the top of the small aperature is cut off so it is level with the body? thats the horizon line. there is a notch in it above the small aperature for a 600 yard shot. look again at the #40a on the right, there is no cut on the small aperature. it has the standard a2 aperatures. just wonderif if the ACOG sits low enough to come into contact with the small aperature of the #40a while the BUIS is folded down.
Link Posted: 9/16/2003 12:06:16 PM EST
SuperChicken: Thanks for the info. What's the purpose have having the #40 with the milled horizon line? Also, what is the part number for the non-milled horizon line, #40A?
Link Posted: 9/16/2003 12:36:00 PM EST
Link Posted: 9/17/2003 2:33:44 AM EST
Does the aperture interchange with the standard A2 sight? I have an XS same-plane aperture and I'd like to keep it if I get a #40. jafager
Link Posted: 9/17/2003 3:46:03 AM EST
If the XS will fit M16/M4's handle it will work as the #40 uses the std. gov't aperatures. The #40 was not cut down to mount the ACOG. The notch and horizon line are there to give a soldier the ability to engage an enemy target out to 500-600 meters since the red dot's and irons are only zero'd out to 300 meters. When all of a sudden you get long distance incoming from an AK/etc. that you realy can't spot, it is a lot more accurate to have the notch and line than guessing how much over thier heads you put the red dot.while you go for cover. The notch is a guide that works better than guessing. Good Shootin, Jack
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