FailZero 6.8 SPC Bolt Carrier Group (No Hammer) – NiB Coated

The FailZero 6.8 SPC Bolt Carrier Group delivers a drop-in replacement or upgrade for AR-15 pattern rifles chambered in 6.8 SPC. Built with proprietary Nickel Boron (NiB) coating, this BCG reduces friction and carbon fouling compared to standard phosphate finishes, making post-range cleaning faster and easier. Designed for shooters who need reliable cycling in a harder-hitting intermediate caliber, this bolt carrier group is built to handle the increased chamber pressures of 6.8 SPC.

The carrier and bolt are machined from mil-spec materials and feature FailZero's NiB finish inside and out, including the gas key. Installation is straightforward for anyone familiar with AR-15 maintenance—no gunsmithing required. This version does not include a firing pin, cam pin, or retaining pin, allowing you to reuse existing components or select aftermarket parts. The permanently staked gas key and proper headspacing ensure reliable function across a wide range of ammunition types.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15 pattern rifles in 6.8 SPC
• Material: Mil-spec steel
• Finish: Nickel Boron (NiB) coating
• Installation: Drop-in
• Includes: Carrier, bolt, and gas key (no firing pin, cam pin, or retaining pin)