^ Great looking rifle!
Recent of mine.
Been wanting a flip down gas block, but I hate the idea of getting rid of the pinned fixed sight. So I think instead, the cheaper and most of all, easier route is to just get a 1/4" riser for my holosight and magnifier. Just as effective and I can keep my front sight :) Eventually I'll replace my Eotech 502/Bushnell with an Eotech XPS. I like the shortness of the XPS. Or maybe I'll go with the EXPS and use it without the riser I plan on getting for my current sight.