I ran across something interesting last week when I decided I wanted a QD mount for my Romeo 4T https://www.sigsauer.com/store/romeo4t-1x20-mm.html. I called up Sig to confirm what mounts are compatible, and they told me any Aimpoint would be fine, so I ordered an ADM https://www.americandefensemanufactu...w/product/208/and figured it would be a no brainer. Well, once the mount showed up I immediately noticed it's a bit taller then the one that came with my red dot, so after doing some research I now see that the Sig mount is 1.41" and the ADM is 1.52".
How can that be? I had assumed that all co-witness are the same, but now I'm starting to think that maybe Sig lied to me and a standard Aimpoint mount won't work with their optic. God knows the seem to be in love with their proprietary systems lately, is this what I'm experiencing? Can anybody else shed some light on why there might be two different co-witness heights for these mounts?
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