Stack, I don't have the minimum 50 posts required to reply to your PM regarding the flash hider on my AR15. It is a BattleComp 1.0 Compensator and I bought it at SKD Tactical.
West Lafayette native and Purdue Engineering grad says hello from East Tennessee. I normally hang out at SIGforum and M4Carbine, but thought I'd signup here at INGO ... kind of like coming home.