SO I picked up my CB ACR today at one shop them headed out to another for all the goodies and a ACOG 4x32 to put on it. I bought the basic/folder and was told I could use Magpul MOE rails for a fore grip and other items. When I tried to mount the rails the heat shield creates too much space for the screw to start and tighten. I am sure someone here has run into this and was hoping for a solution. Thanks in advance!