ATRS FA Upper MK18 URGI Mk18 Mod 3 CQBR 11.5"

Hi built this out of interest. I don't have the lower 

Geissele Automatics, MK16 Super Modular Rail M-LOK 10.5, Desert Dirt 

11.5"  barrel  5.56  1:7 twist

WMD BCG

BCM Gunfighter

Surefire flashhider and Warden