I think this is one of the most trick accessories made for the AR-15! It works absolutely fantastic when reloading your rifle. One caution however. I installed it and put one drop of blue locktite on the little set screw so it would not loosen. Do not overtighten the set screw, just tighten it down snug. The metal of the screw is a little on the soft side, so again, just snug it down and ad a drop of the blue locktite. I honestly rate it as excellent for the AR type platform rifle!