【CUSTOM GBB WORKSHOP】
COLT AMALITE AR-15 model 601 rifle
ghk base
deep marking, deep 0.3mm
custom upper kit 7075-t6 forged for ghk V2
custom steel out barrel
custom steel flash hider
custom handguard
custom stock
custom grip
custom bolt chrome
real front rear swivel
real rear front sight
real trigger guard
real charging handle
real cover plate
real magazine catch
real front pivot pin
cerakote
Anodizing
phosphate coating
detail fix