I have just bought what I thought was the last item for my ar-15(eotech 512) and I see I am switching from a eotech to a aimpoint , if possible, I just bought it today It looks ok but the dot does not line up with my front sight post even with windage adjustment , and I dont have a lot of room to manipulate the buis(yankee Hill) I really like it thought, I hope I will be able to exchange it tomorrow, I just mounted it then took it off. Is the aimpoint everything that I hear it is and I have to get a specific mount for it don't I?