So I'm coming across a little problem that magpul never mentions. I have their MOE handguard and MOE bolt-on rails. The problem is that once mounted on either side of the handguard my internal space is so limited that I can't fit my internal heat shield into place. So my question is, how necessary is this aluminum heatshield? Should I just go without it or will my hands and polymer be complaining without it? My only other option is to dremel the **** out of the screws and shorten them up... not going to be fun.