Hey guys.. In the process of building an AR and have a question for those familiar with the Vltor Casv-S hand guard (the one with the "stepped" mounting rail).

 

Looks like this:

 

My plan is to mount an Eotech to the front "lower" portion of the rail to co-witness with the front sight but my question is, will I have any issues with lining up a magnifier for the Eotech when installing the magnifier on the "upper" portion of the handguard?

 

I'm planning on getting the Eotech 516, which I believe comes with a 7mm riser. Here's what the rifle would look like with the Eotech in position (on the lower portion)-

 

 

Think a magnifier will still work in a setup like this? Or will I be staring into the top frame of the Eotech due to misalignment?

get the EXPS 2-0 Eotech instead of the 516. it will take up less room & u can mount the mag behind it on the top rail.

get the EXPS 2-0 Eotech instead of the 516. it will take up less room & u can mount the mag behind it on the top rail.

 

+1 they are meant to mount on the same plane as far as I know..

 

do NOT like that rail system at all.. why would you want a uneven rail like that?

+1 they are meant to mount on the same plane as far as I know..

 

do NOT like that rail system at all.. why would you want a uneven rail like that?

 

Main reason was so I could co-witness the HWS with the front sight. The CASV-S does just that by having the "stepped" design.

Still exploring magnifier options as I'm definitely going to mount the Eotech on the "lower" portion. I spoke to the Vltor tech person and they said that it would work (installing magnifier on the higher part) but I was curious if there was any "real world" experience...

I have a flat top AR with a MI rail and my optics and iron sights co-witness...