Hello I'm trying to find a good home for my complete upper. It started it's life as a FN military M4 collector edition. I had the upper swapped for a carry handle upper. Everything else is how it was knights quad rail and all. Has aimpoint PRO W/ A legit M68 A.R.M.S mount. And a stream light with pressure switch. Muzzle devise is an 3 prong flash hider for rugged suppressors. Yes upper is spray painted quit crying, it's a tool. Not opposed to trades just let me see what you got.