Bassbob
Emissary
It is extremely possible it will end up there, but it should be zero'ed independently from your iron sights. Most of the time these optics come factory "Zero'ed" and only require relatively small adjustments. After mounting the red dot, if the dot is off to one side or the other significantly, you could move it in line with the front sight just to get it closer before adjusting it with live fire ( assuming your irons are adjusted correctly), although every one I ever had was pretty close to center to start with. Where it ends up vertically on the front sight will depend on what distance you zero it at. If you intend to use the gun as a carry gun you need to train a lot with the red dot and you should pretty much ignore your front sight.thx, should your dot be above front sight?
So to make a long story a little longer, no you're dot shouldn't be placed on your front sight as a means of zero'ing it, but after you have zero'ed the dot it probably will be.