Aero precision m4e1 upper 300 blackout - Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider

Very good upper in FDE, no scratches or blemishes and very easy to clean with minor effort. I am not crazy about the quad rail but like that it doesn't run all the way back, making it more comfortable to hold with my support hand. I have a MI mlok slim handguard gen2 on my 556 upper and prefer that better over the quad rail, thats why I gave this 4 stars.