FailZero 7.62x39 Bolt Carrier Group No Hammer NIB AR-15
FailZero
$165.69
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FailZero
FailZero 7.62x39 Bolt Carrier Group No Hammer NIB AR-15
The FailZero 7.62x39 Bolt Carrier Group (No Hammer, NIB) is a fully assembled, drop-in BCG engineered for AR-platform rifles chambered in 7.62x39, featuring FailZero's proprietary EXO Nickel Boron coating for unmatched reliability and reduced maintenance demands.
- EXO Nickel Boron coating delivers permanent dry lubricity on all critical parts
- Fully assembled and ready to install in most mil-spec upper receivers
- Extreme wear resistance extends service life under high-round-count use
- Superior corrosion resistance protects against moisture, sweat, and harsh environments
- Sold without hammer — ideal for builders sourcing components separately
- Smooth, self-lubricating surface reduces fouling buildup and simplifies cleaning
Who This Is For
This BCG is an excellent choice for AR builders, competitive shooters, and serious enthusiasts running a 7.62x39 platform who want a low-maintenance, high-durability bolt carrier group. Because it ships without a hammer, it's especially well-suited for custom builds where the builder is selecting trigger components independently, or for replacing a worn BCG while keeping an existing hammer assembly.
Specifications
| Brand | FailZero |
|---|---|
| Caliber | 7.62x39 |
| Coating | EXO Nickel Boron (NIB) |
| Configuration | No Hammer (NIB) |
| Assembly | Fully Assembled BCG |
| Compatibility | Mil-Spec AR Upper Receivers (7.62x39) |
| Lubrication Required | None (Dry Lubricity Coating) |
| Corrosion Resistance | Yes |
| Country of Origin | USA |
Frequently Asked Questions
Why does this BCG not include a hammer?
The FailZero 7.62x39 BCG is sold in a "No Hammer" configuration to give builders maximum flexibility when assembling a custom lower. If you already have a complete trigger group or are sourcing a match-grade trigger kit separately, you won't need — or want to pay for — a redundant hammer. Simply pair this BCG with your preferred hammer and trigger assembly for a complete build.
Do I need to oil or lubricate this bolt carrier group?
One of the standout benefits of FailZero's EXO Nickel Boron coating is its permanent dry lubricity. The coating itself acts as a lubricant, meaning the BCG can function reliably with minimal or no additional oil. While a light wipe-down is always a good practice after extended range sessions, you won't need to run it wet like a standard phosphate or parkerized BCG.
Will this BCG fit my 7.62x39 AR-15 style upper receiver?
This FailZero BCG is designed to fit most standard mil-spec AR upper receivers chambered in 7.62x39. It is not compatible with 5.56/.223 uppers due to the larger bolt face required for the 7.62x39 cartridge. Always verify your upper receiver's specifications before purchasing, and consult the manufacturer or a qualified gunsmith if you are unsure about compatibility with a non-standard or proprietary upper.
