【CUSTOM GBB WORKSHOP】
COLT M16A2 model 727 carbine
rare arms base
deep marking, deep 0.3mm
custom A2 upper kit 7075-t6 forging for rare arms
lower 6061-t6 forging
steel out barrel 14.5"
steel front sight
real buffer tube 2 position
real front swivel
real rear sight
real handguard cap
Anodizing
phosphate coating
detail fix
https://www.youtube.com/watch?v=i0JZKihM9ww
