You are right. That is the Springfield SOCOM II with the OEM rail system. I have a gunsmith who is a great machinist. He moved the top rail system back 4 inches so I could utilize the Eotech with the 3X magnifier. I have it set up or close quarter combat. The 3X magnifier is springloaded and pivots out of the line of site with a simple click. If you need to reach out to 150-200 yards you can slap the magnifier back in place
A lot of folks don't like the weight and kick of the 7.62x51 for CQ but I am a big ol boy and don't have a problem with it. It leaves no ambiguity regarding your intent and will take out most body armor.