Fail Zero Bolt Carrier Group - .458 Socom Ar-15!

Fail zero bolt carrier group.458 socom ar-15!

FEATURES
-Bolt & Extractor (.458 SOCOM & .450 Bushmaster compatible)
-Bolt Carrier
-Extractor
-Cam Pin
-Carrier Key
-Firing Pin

Other Features: Exo nickel boron treated, drop in install for most mil-spec.458 socom uppers