Trijicon RMR on a Glock. Absolute Cowitness or Lower 1/3?

[kennyd1gital]

FWIW:

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.

You've probably already got this all figured out, given this post is over a year old, but... Some useful information contained within this video from Suarez International: https://www.youtube.com/watch?v=77AQApBXI_0

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

In my opinion, Sage Dynamics is incorrect. Gabe Suarez offers many valid points to the contrary in this article. (Note: For whatever reason, the images contained within the article appear to be missing.)

Not sure if this is useful to anyone, but here is some more info I've managed to glean w/regard to co-witnessing sights with RMR on Glock 17/19/34:



Tall sights for RMR setups:
(Note, these are full measurement from bottom of G17/19 dovetail slot to top edge of sight)



Obviously, there are others, but these are very popular ones with published specs.

@ Powder_Keg: I'm currently running a G17 with blacked out Trijicon suppressors 361/365 combo on G17 in lower 1/3 cw, which I think will be pretty similar to your G34 Ameriglo setup from ATEI. Enjoy it, and be sure to let us know how you're getting on.

For what it's worth, I recently shot an instructor buddy's G19 Leupold Deltapoint Pro which he has setup with the DPP adjustable rear iron sight module. It was adjusted so the rear iron was just barely visible above the red dot mount (much lower than a lower 1/3 co-witness, but still useable for backup). The uncluttered FOV and clarity of glass was way more comfortable than my RMR setup. I'd like to mimic that approach with my G17/RMR setup, if I can find a .330 ish rear sight... To be honest, I think G19 + DPP will be my next experiment...

Cheers

VERY useful information; thank you for that.