【CUSTOM GBB WORKSHOP】
COLT XM177E1 model 609 early
WE base
deep marking, deep 0.3mm
RA-TECH steel bolt carrier
RA-TECH steel fire control kit
Crusader steel stock lock nut
Crusader steel out barrel
Aluminum CNC 2 position buffer tube
steel barrel nut
steel safety
steel flash hider
rear M16A1 FSB
real M16A1 charging handle
real M16A1 ejection port cover
real M16A1 rear sight
rear M16A1 teardrop forward assist
rear M16A1 grip
rear M16A1 front swivel
rear M16A1 magazine catch
rear M16A1 trigger guard
Anodizing
phosphate coating
detail fix
