OK then you'll just need to make sure to get a pair of "same height" sights and you'll be all setup.
FYI: When I install a forend with a top rail onto an A3 type railed upper, I like to temporarily mount something over the spot where the rails meet and clamp onto both the upper and the forend rails at the same time. It helps to make sure you have them both in proper alignment when you go to lock down the forend holding screws.
Awesome, thanks for the help!!! Ill post pics of the finished product!