I've handled an original long range trapdoor (one of 116-163 depending on your source), and yes they do have a different sight as well as a different stock, a detachable pistol grip, the .45/80 chamber and 6 lands and grooves. Last I heard they are worth well over $20K. I have a Pedersoli copy of the long range rifle. It's a very good shooter even though it isn't a very good copy of the long range rifle.