Simple and sturdy - Daniel Defense Rail Mount Fixed Front Sight

I use this sight on every AR I own for two reasons. First, I don't need to carry or find a star bit or an Allen key to remove or adjust it, just a simple flat screwdriver. Second, It's set and forget. Once it is sighted in I don't have to worry about accidentally bumping a wheel or turning a knob. Once it's set, it's set.