Fail Zero

fail zero nickel boron exo bolt carrier group

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FailZero EXO Nickel Boron AR-15 Bolt Carrier Group & Hammer (FZ009-FZAR15-01)

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SKU: FZ009-FZAR15-01

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    • Drop-In Replacement
    • Critical parts are coated with EXO Nickel Boron coating
    • Enhanced lubricity
    • Increased wear and corrosion resistance
    • Includes complete AR-15 Semi-Auto BCG and standard single stage hammer


    This bolt carrier group comes complete are ready to drop in to your AR-15.  No fitting is required.  The EXO nickel boron treatment has several advantages that will increase the performance of your AR-15.


    The EXO NiB coating is a military proven technology that has several advantages.  The surface conversion created a permanently lubricious surface that is harder than the substrate itself.  What this does for you is greatly diminishes the reliance on grease, oil and other forms of wet lubrication.  The lubricious coating is permanent as will not rub off like traditional lubricants. 


    The EXO NiB coating has been subject to rigorous Department of Defense testing.  This tough testing has included 50,000 rounds fired through AR-15’s with no lubrication. 


    All FailZero parts are built to mil-spec standards.  They will function in standard AR-15 rifles.


    Nickel Boron coated parts include the following components



    Bolt Carrier



    Cam pin

    Gas Key

    Firing Pin


    For installation instructions, Please Click HERE.


Additional Information

Part # FZ009-FZAR15-01
Manufacturer FailZero


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