Cheek weld and scope bell clearance are the main issues. You may have to try a couple to get what works best for you.
Last year,I bought an Armalite one piece mount for $37 on clearance. It was camo'd and discontinued. they do have 2 piece mounts on sale about halfway down the page. They should give you the proper sight alignment.
http://armalite.com/sales/specials/excess/Excess031008.htm
