Fail Zero's fully assembled .458 SOCOM bolt carrier group features EXO Nickel Boron coating for permanent dry lubricity, extreme durability, and superior corrosion resistance. Drop-in ready for mil-spec uppers.
This fully assembled bolt carrier group arrives ready to function in most mil-spec .458 SOCOM upper receivers. No gunsmithing required—simply install and shoot.
All critical components receive Fail Zero's proprietary EXO Nickel Boron coating, a permanent surface treatment that delivers:
This bolt carrier group includes all essential components:
The Nickel Boron coating on each part ensures consistent performance and longevity. Whether you're building a precision hunting rifle or a dedicated training platform, this carrier group delivers the reliability serious shooters demand.