COLT XM177E1 model 609_WE

 【CUSTOM GBB WORKSHOP】
COLT XM177E1 model 609
WE GBB base
deep marking, deep 0.3mm
RA-TECH steel bolt carrier
RA-TECH steel fire control kit
RA-TECH steel safety
Crusader steel stock lock nut
real M16A1 ejection port cover
2 position buffer tube
Anodizing
phosphate coating
detail fix