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kmc0929
05-19-18, 13:48
See both attached photos. I tend to like my optics with a lower height over bore. Would the photos shown be considered a lower 1/3rd?

https://s9.postimg.cc/csx5cj4pr/IMG_0299.jpg (https://postimg.cc/image/mq865lcbf/)

https://s9.postimg.cc/jjdmlz7b3/IMG_0300.jpg (https://postimg.cc/image/9m2lswzp7/)
thehammer69
05-19-18, 13:58
Not on the AR
titsonritz
05-19-18, 14:04
More like upper 1/3

https://www.m4carbine.net/showthread.php?17049-Explanation-of-Co-Witness
stitch702
05-19-18, 14:50
Your sights would be absolute cowitness. Lower 1/3 would have your iron sights sitting 1/3 lower than your red dot. So you would have a raised mount.


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kmc0929
05-19-18, 15:48
Alright so dumb question, is there anything wrong with using them like this? With the AR - I never use iron sights. With the 9mm the red dot seems to kind of sit inside the iron sight picture.
GH41
05-19-18, 15:53
On the top gun.. If the sights are fixed it will be lower something. On the AR it would be No-Witness with the sights deployed.
stitch702
05-19-18, 16:01
Alright so dumb question, is there anything wrong with using them like this? With the AR - I never use iron sights. With the 9mm the red dot seems to kind of sit inside the iron sight picture.

No nothing wrong. I base it on comfort and preference. I use a 1/3 witness on my cz scorpion because the absolute witness crowds my sight picture. Others may prefer absolute because if their iron sights are zeroed they can just line up their red dot to the sights and it too will most likely be zeroes.


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jackblack73
05-19-18, 21:35
No nothing wrong. I base it on comfort and preference. I use a 1/3 witness on my cz scorpion because the absolute witness crowds my sight picture. Others may prefer absolute because if their iron sights are zeroed they can just line up their red dot to the sights and it too will most likely be zeroes.


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If the red dot is parallax free, you can do this whether it’s lower 1/3 or absolute.