I'm looking to go a little shorter. My upper is a DPMS flat top with a low pro sight block and an A2 birdcage. I'd like a 14.5" flat top upper with a pinned or otherwise fixed FH. Will throw some on top for a different FH or MB like a phantom or other. Pics below are of my rifle. It is currently scoped. This would be great for someone who wants to be able to attach a suppressor or change out the FH. Thanks, Bryan.