Absolute or lower 1/3 cowitness mount list?

[USNsheepdog]

First off, I'd like to apologize if there is already a thread for this but I've been searching for quite a while now and haven't been able to find it.

I'm trying to find a list of Aimpoint mounts that states whether the mount is absolute or lower 1/3 cowitness. Every website I've been on just says the mount provides a cowitness with BUIS. Some tell you how high the mount puts the centerline of the optic above the rail, but I can't find the relationship of those measurements to the type of cowitness. It's a bit frusrating to have to either call the company or look around to find out which type of cowitness the mount provides. I think it's a pretty vital bit of information to include when you're trying to sell a product, but that's just me... Any input is appreciated!

Thanks,
Gary

[Singlestack Wonder]

Here's a couple of 1/3 lower co-witness mounts for 30mm Aimpoints:

http://www.americandefensemanufactur...iew/product/3/

http://stores.homestead.com/Laruetac...tail.bok?no=26

Here's a Chart from LaRue Tactical showing various mounts with illustrations for Micro Aimpoints (H1 & T1)

http://www.laruetactical.com/pics/LT...icro_Chart.jpg

[USNsheepdog]

Here's a Chart from LaRue Tactical showing various mounts with illustrations for Micro Aimpoints (H1 & T1)

http://www.laruetactical.com/pics/LT...icro_Chart.jpg

That's helps a bit. The cantilever mounts for the M series Aimpoints are the ones I couldn't find cowitness info about.

MI#15 (I really like this one)
http://www.midwestindustriesinc.com/...category_id=83

LT129
http://stores.homestead.com/Laruetac...tail.bok?no=37

Neither of these state whether it's absolute or lower 1/3 cowitness.

[Singlestack Wonder]

That's helps a bit. The cantilever mounts for the M series Aimpoints are the ones I couldn't find cowitness info about.

MI#15 (I really like this one)
http://www.midwestindustriesinc.com/...category_id=83

LT129
http://stores.homestead.com/Laruetac...tail.bok?no=37

Neither of these state whether it's absolute or lower 1/3 cowitness.

The LT129 positions the center of the optic 1.7" from the top of the rail the same as the LT150.

[USNsheepdog]

The LT129 positions the center of the optic 1.7" from the top of the rail the same as the LT150.

Would that mean it's absolute or lower 1/3 cowitness?

[Singlestack Wonder]

1/3rd Lower co-witness.

[Crow Hunter]

From my "research" absolute will give you approximately 1.5" above the rail to the center of the optic and a lower 1/3 will give you approximately 1.75" above the rail. There is some difference between manufacturers but this is the Larue "standard".

If you are trying to decide, you really should try both out. I have both and the "absolute height" is not as comfortable or natural for me unless I am laying prone behind the optic. The Larue 1.75" height is ideal for me when I am up on 2 legs and or moving around, but it is a little high in prone.

Hopefully I didn't confuse the issue too much.

[ra2bach]

what optic are you asking about?

[BCmJUnKie]

If youre goin with Aimpoint, get the LaRue STANDARD mount. Its bottom 1/3. There is no benefit to absolute co-witness. If you dont have the optic yet, go to Larue, they have Optic/Mount combo's that save you almost $100 bucks. I picked my CompM3 up w/mount for I think 650

[HeavyDuty]

There is no benefit to absolute co-witness.

Opinion does not equal fact.

Gary, I prefer absolute cowitness so have a limited choice of mounts to pick from. I ended up with a couple of ADM AD-68s for M3-type sights. They have three heights - no suffix = absolute, H = lower 1/3 and L = low mount for things that need it.