I can shoot holes touching at 50yrds with my magpul backup rear sight. I cant complain about that. My primary sight is an eotech 512. I use it almost exclusively. The magpul is a very good backup sight. Who wants to pay $200 for back up irons?
Now if we're talking iron sights for a flattop as primary sights, sure there are better sights out there than the magpul.