FailZero AR-10 Bolt Carrier Group (No Hammer) – EXO Nickel Boron Coating

The FailZero AR-10 Bolt Carrier Group delivers reliable cycling in .308/7.62 NATO platform rifles with a self-lubricating nickel boron finish that reduces friction and carbon buildup. This BCG is engineered for shooters who want consistent performance with minimal maintenance, featuring FailZero's proprietary EXO coating applied to all contact surfaces. The nickel boron treatment creates a harder, slicker surface than traditional phosphate finishes, allowing this carrier group to run cleaner and longer between cleanings.

Machined from mil-spec 8620 steel with a 9310 steel bolt, this carrier group is finished with FailZero's EXO nickel boron coating inside and out. The coating penetrates the metal rather than simply sitting on top, providing permanent lubrication that won't wear off under normal use. This is a drop-in replacement for standard AR-10/SR-25 pattern rifles. Does not include firing pin or cam pin—verify compatibility with your specific lower receiver before installation.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-10, SR-25 pattern rifles (.308/7.62 NATO)
• Material: 8620 steel carrier, 9310 steel bolt
• Finish: EXO Nickel Boron (NIB)
• Installation: Drop-In
• Includes: Bolt carrier, bolt assembly, gas key (staked). Does not include hammer, firing pin, or cam pin