AR-15 Question About Optics

I am installing my first holo/magnifier setup. I have an M&P 15 Sport III, and I am trying to fit my holographic sight, magnifier, and iron sights on the upper, but it simply doesn't all fit.

In order for them all to be attached, I have to be bridging slightly on the holo sight between the barrel and upper. This is obviously not good.

So, what is the common solution? Do I lose the irons, lose the magnifier, or let it bridge slightly?