【CUSTOM GBB WORKSHOP】
COLT M16A2 model 727 carbine
GHK base
deep marking, deep 0.3mm
steel stock lock nut
Custom A2 upper kit 7075-t6 forged for ghk v2
Real front swivel
Real rear sight
Real trigger guard
Real charging handle
Real magazine catch
Real handguard cap
VFC lower, fire control parts, out barrel
used ghk magazine
Anodizing
phosphate coating
detail fix
