The sight, Charging Lever and Burris Red Dot Mounting Top Cover are all excellent quality. The Ambidextrous lever is great to use. Very comfortable. Adding the Burris Red Dot allows me to shoot well, again. "Old Eyes" and iron sight and not good. Red Dot works for me. Good to be shooting, again. US Barrel Shroud have been excellent to work with. They know their stuff. Highly recommend!