Nelson vs. Marvel vs. Tactical Solutions SHROUD/RIB comparison?

Hi,

Does anyone have a picture comparing the shrouds or barrels? I am curious on if Marvel ribs can fit the Nelson or Tactical Solutions?
I want to buy a shroud w/ comp built in but it is made for the Marvel. I have a Nelson and have access to to TacSol.

Thanks!
N

I know that a Nelson Iron Sight rib did not fit my older Marvel unit so I would expect them not to work in reverse order either.  The screw holes weren't the same but I don't remember if that was the only difference or not. 

John

I recall seeing a picture of the newer ribs and the holes were the same - except Marvel had one additional hole.

But why?

I also checked, they are not cross compatible. The Marvel screw pattern is further foreword than the Nelson. The alignment pin location is also different.

I want to buy a new shroud/comp that is made for the Marvel but use it on my Nelson. Curious on how much modification is needed for this. Apparently the Marvel goes easier on a Nelson with just one additional hole. See here: https://www.bullseyeforum.net/t14312-nelson-marvel-compatibility-question#124627

I have had one new hole drilled in ribs from Marvel and they then will go on others.  One hole is in the right place.  Drill another and pull the pin.