there are many sights out there now that are HUNTING sights that can be moved without tools (sure-loc lethal weapon, cobra ascent, toxonics hybrid, sight master, and many others) the key is that you just dont move it during a shoot. This is something that can be policed by us the shooters on the range. If we all work at this it will be easyer for all. SO JUST DONT TOUCH THE SIGHT ON THE RANGE.