COLT U.S. Air Force’s GUU-5/P_GHK

 【CUSTOM GBB WORKSHOP】
COLT U.S. Air Force’s GUU-5/P
GHK base
deep marking, deep 0.3mm
custom upper kit 7075-t6 forged for ghk v2
custom steel 11.5" Pencil out barrel 
M16A1 type steel flash hider
M16A1 type lower
M16A2 type delta handguard slip ring
3rd Generation stock
real M16A1 FSB
real M16A1 rear sight
real M16A1 charging handle
real M16A1 ejection port cover
real M16A1 grip
real trigger guard
real buffer tube 2 position
rear front swivel
real handguard front cap
Anodizing
phosphate coating
detail fix