This video doesn't do this much justice. After a 500 round rattle trap of a break in this thing seemed to print low, however, that was after it was moved a rail slot or two forward which can and will throw off your zero. As shown in the vid the sight adjustments work and the overall look ain't half bad as long as you get a riser for your AR15! This AR happens to be the cheapest on the market too! Check out the links below to learn more about the Fedarm FR15!