Quality wise, the cetme ones are pretty rough. The adrenaline arms ones are better but they don't seem to be as strong or as high quality as the ones that come on Eagle slings. Not sure about the blackhawk ones, never have handled them. I have been using an adrenaline arms hook on a grsc carbine buffer lock plate and so far it has held up. The lock plate wore all the finished off the hook pretty quick, but doesn't seem to have cut into the hook too much.