FailZero AR-15 Bolt Carrier Group (No Hammer) – Black EXO Coating

The FailZero AR-15 Bolt Carrier Group delivers reduced friction and enhanced reliability through its proprietary EXO nickel-boron coating. This BCG is designed for shooters who want extended time between cleanings and smoother cycling without wet lubrication. The "no hammer" designation means this carrier does not include a firing pin, cam pin, or gas key screws—ideal for builders who already have these components or prefer to source them separately.

Machined from mil-spec 8620 steel (carrier) and 9310 steel (bolt), the entire BCG receives a uniform black EXO coating that penetrates the metal surface for self-lubricating properties and corrosion resistance. The coating reduces carbon buildup and allows for dry operation in dusty or sandy environments. Installation is drop-in for any mil-spec AR-15 upper receiver. This BCG is intended for experienced builders familiar with AR-15 assembly and headspace verification.

• Part Type: Bolt Carrier Group (No Firing Pin/Cam Pin)
• Compatible Firearms: Mil-Spec AR-15/M16
• Material: 8620 Steel Carrier, 9310 Steel Bolt
• Finish: Black EXO Nickel-Boron Coating
• Installation: Drop-In (Gunsmithing Knowledge Recommended)
• Includes: Bolt Carrier, Bolt, Extractor, Ejector (No Firing Pin, Cam Pin, or Gas Key Hardware)