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Optics, Mounts, Rails and Sights If it aims your firearm, post about it here.

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  #1  
Old 07-17-2017, 12:02 PM
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Default Trijicon RMR on a Glock. Absolute Cowitness or Lower 1/3?

I did a search to see if this was already discussed, but couldn't find anything. Please reply with a link to a thread if I missed it.

On my rifles, I go with a lower 1/3 cowitness. This will be my first RMR on a Glock. For those of you that have added a red dot to your handgun, do you prefer an absolute cowitness or a lower 1/3 cowitness. Any reason to why?

If it makes any difference I plan to run a plain black front and rear sights.
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Last edited by Powder_Keg; 07-17-2017 at 12:07 PM..
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Old 07-17-2017, 12:25 PM
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What do you intend to do with your pistol?

I have been looking at the RMR for a Glock 17 slide, but it will be used in carry optics division for USPSA and Steel shoots.

I have tried my buddy's Glock 34 with a RMR and co-witness sights. I found the iron sights distracting and actually slowed me down on targets as I was doing what I would do on my iron sighted pistols....focused on the front sight. Then I would try and focus on the target and get the dot on target. And all the while...there was the front sight.

So for a game gun, I would say no iron sights or just standard height sights.

If you plan on using it for defense, then co-witness would be smart.

I like using specific tools for specific jobs. So when I do out the slide together it will just have the factory sights that will not be used or seen with the dot.

Good luck.

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Old 07-17-2017, 12:32 PM
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On my rifles, I go with lower 1/3 cowitness if my front sight is fixed. Therefore I would go with lower 1/3 cowitness on a Glock since the sights are fixed. It's less clutter in my sight picture.
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Old 07-20-2017, 5:16 PM
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Quote:
Originally Posted by BigBamBoo View Post
What do you intend to do with your pistol?

I have tried my buddy's Glock 34 with a RMR and co-witness sights. I found the iron sights distracting and actually slowed me down on targets as I was doing what I would do on my iron sighted pistols....focused on the front sight. Then I would try and focus on the target and get the dot on target. And all the while...there was the front sight.

.

It will be mainly a range gun, but maybe at some point I'll use it for a local match.

I agree, my thoughts are the iron sights with absolute zero would be a distraction and block the view of the small window.
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Old 07-20-2017, 5:20 PM
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Quote:
Originally Posted by teflondog View Post
On my rifles, I go with lower 1/3 cowitness if my front sight is fixed. Therefore I would go with lower 1/3 cowitness on a Glock since the sights are fixed. It's less clutter in my sight picture.
That's what I am leaning towards, lower 1/3. I've read reviews that the iron sight will help guide the eyes to the red dot. I just don't want the iron sights to cover the target or take up more view then needed.
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Old 08-12-2017, 3:27 PM
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On my Carry Optics USPSA gun....no irons. They are just too distracting.
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Old 08-17-2017, 3:32 AM
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I run a lower 1/3 on both of my RDS hand guns. It is less clutter for your FOV and less distracting on your eyes when you bring your hand gun up on target. the RDS is your primary sighting option. your irons is secondary in case your primary fails. tech has evolved and many torture tests have been completed that prove many RDS can withstand the abuse. allow the clearest picture for your target as possible, lower 1/3 provides this.

dont forget... placement of the rear sight is important as well. as explained by Sage Dynamics.

https://www.youtube.com/watch?v=zrrlxEwUaRM
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