AVATactical...truly great product and obviously you're someone who uses sound skills to find solutions. Let me pose another challenge from the Benelli M4 community....not to get to far off-track but a light weight, low profile, field strip-able, heat shield. Something that would allow for a modern grip technique thus facilitating better quick acquisition shooting. Obviously you have a lot going on now but just wanted to put something in the back of your mind : )