colt model 605b first carbine_vfc v3

 custom gbb workshop

colt model 605b

first carbine

vfc v3 system gbb

grey receiver

cerakote

4 way fire control group (safe, auto, semi, burst)

15" out barrel

15" inner barrel

steel barrel nut

3 prong flash hider

no forward assist upper

no forward assist bolt carrier

detail fix