Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
11/22/2004 8:40:42 AM EDT
Would the YHM 1/2" rail riser elevate an EOTech to about the same height as a Larue EOTech mount? Just looking for a cheaper option than a Larue mount.

Thanks!
11/22/2004 10:26:44 AM EDT
[#1]


Maybe I'm really missing something here, but why do you want to raise it a all?

The EoTech is designed to mount directly to the flattop rail.  When mounted directly, it co-witnesses with your iron sights and affords a perfect cheek weld.

So, the best way to save money would be to use no ancillary mount at all, wouldn't it?

Thanks in advance for any enlightenment
11/22/2004 10:47:54 AM EDT
[#2]
I know that the Larue mount allows the iron sights to co-witness the EOTech in the lower 1/3 of the lens, but I was wondering whether the YHM riser would do the same thing.

Thanks for your response!
11/22/2004 11:02:14 AM EDT
[#3]
As I recall (and my memory is not so good, so I suggest waiting for confirmation!), the Larue mount raises the EOTech by only 1/4",  if the YMH is 1/2" as you said, it would be too high, as the LaRue puts the irons at their optimal height, IMO.  I prefer fixed BUIS, so I like that they're useable, but not at all in the line of sight.

I think the LaRue mount began its prototye stage as a 0.3" rise, and that was decided to be too high.

I'm very, very happy w/ my LaRue mount.  You won't regret it.  If money's an issue, I'd suggest putting the EOTech directly on the flat-top until you can afford the LaRue, just my opinion.  Have fun, and post pics! :)

rvb
11/22/2004 11:07:10 AM EDT
[#4]

If that's what you want to do, yes, the YHM riser will work.  ETA:  Will NOT work!

I still don't understand why you don't want to co-witness in the CENTER of the EoTech, however

If you have a AA battery version of the EoTech, you may want to use 2 risers - one to provide some support for the front of the EoTech.  On a 5.56 it would probably be OK with just one riser, but I would feel better with 2.  With the N battery version it's probably a non-issue.

FYI: I just fit up a YHM riser to my AA battery EoTech and the locking surfaces of the EoTech are engaged 100% by the riser.

HTH

ETA:  rvb is dead on!  The YHM risers raise the deck height by exactly 0.5"  This puts the iron sights at the bottom edge of the Eotech window - not usable as co-witness.  Sounds like you should not use them. and follow rvb's excellent advice.

Sorry for any confusion.

11/22/2004 11:21:50 AM EDT
[#5]

Quoted:

If that's what you want to do, yes, the YHM riser will work.

I still don't understand why you don't want to co-witness in the CENTER of the EoTech, however

If you have a AA battery version of the EoTech, you may want to use 2 risers - one to provide some support for the front of the EoTech.  On a 5.56 it would probably be OK with just one riser, but I would feel better with 2.  With the N battery version it's probably a non-issue.

FYI: I just fit up a YHM riser to my AA battery EoTech and the locking surfaces of the EoTech are engaged 100% by the riser.

HTH



The YHM puts the EOTech to high (as does the ARMS #38). The EOTech will co-witness if you mount it directly onto your flattop. Some of us EOTech fans think that it suffers from a couple issues though. The first is that the bottom of the 65MOA outer circle is blocked by the FSB. Secondly, we like the irons in the lower 1/3 of the EOTech window. Last, but not least we want a QD/100% repeat zero capability that you cannot get with the standard EOTech mount...

C4
11/22/2004 11:25:56 AM EDT
[#6]

Quoted:

Quoted:

If that's what you want to do, yes, the YHM riser will work.

I still don't understand why you don't want to co-witness in the CENTER of the EoTech, however

If you have a AA battery version of the EoTech, you may want to use 2 risers - one to provide some support for the front of the EoTech.  On a 5.56 it would probably be OK with just one riser, but I would feel better with 2.  With the N battery version it's probably a non-issue.

FYI: I just fit up a YHM riser to my AA battery EoTech and the locking surfaces of the EoTech are engaged 100% by the riser.

HTH



The YHM puts the EOTech to high (as does the ARMS #38). The EOTech will co-witness if you mount it directly onto your flattop. Some of us EOTech fans think that it suffers from a couple issues though. The first is that the bottom of the 65MOA outer circle is blocked by the FSB. Secondly, we like the irons in the lower 1/3 of the EOTech window. Last, but not least we want a QD/100% repeat zero capability that you cannot get with the standard EOTech mount...

C4



We cross-posted and I edited my post, so we are in agreement that the YHM risers are too high.

Again, sorry for any confusion.

But you raise an interesting point, "Last, but not least we want a QD/100% repeat zero capability that you cannot get with the standard EOTech mount..."

How does the EoTech attach to the LaRue mount (not the LaRue to the flattop) that makes it more stable than attaching directly to the flattop?

Can you explain further?

TIA
11/22/2004 11:30:20 AM EDT
[#7]
You attach the EOTech directly to the LT mount just like your would if you put it on your flattop. The LT mount has a QD lever for easy on and off...


C4
11/22/2004 11:31:25 AM EDT
[#8]


Got it!

Thank you, sir.
11/22/2004 11:33:55 AM EDT
[#9]

Quoted:

Got it!

Thank you, sir.




Your welcome...


C4
11/22/2004 12:09:26 PM EDT
[#10]
Thanks for the helpful info, guys! I may look into getting a Larue mount.
11/22/2004 12:45:02 PM EDT
[#11]

Quoted:
Would the YHM 1/2" rail riser elevate an EOTech to about the same height as a Larue EOTech mount? Just looking for a cheaper option than a Larue mount.


No the 1/2" would be too high.  You need a rise of roughly 1/4".

The LaRue is the Cheapest mount available to do what you are looking for - it's also the best made.
AR Sponsor