FailZero AR-15 BCG Nickel Boron No Hammer Mil-Spec
FailZero
$150.69
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FailZero
FailZero AR-15 BCG Nickel Boron No Hammer Mil-Spec
The FailZero AR-15 Bolt Carrier Group (No Hammer, Mil-Spec) delivers exceptional reliability and effortless maintenance thanks to its advanced EXO Nickel Boron coating — a drop-in upgrade engineered for shooters who demand more from their build.
- EXO Nickel Boron coating provides permanent dry lubricity without added oil
- Mil-spec dimensions ensure compatibility with most standard AR-15 uppers
- Fully assembled BCG is ready to install straight out of the box
- Extreme wear resistance extends service life under high round counts
- Superior corrosion resistance protects against moisture and harsh environments
- Easy-cleaning surface dramatically reduces fouling buildup after firing
Who This Is For
This BCG is an ideal choice for AR-15 owners who want a low-maintenance, high-durability upgrade — whether you're a competitive shooter running high round counts, a home-defense gun owner seeking reliable function, or a builder looking for a quality mil-spec BCG that simply works. The no-hammer configuration makes it a perfect complement if you already have a separately sourced hammer or are replacing specific components in your fire control group.
Specifications
| Brand | FailZero |
|---|---|
| Model | AR-15 BCG No Hammer Mil-Spec |
| Coating | EXO Nickel Boron |
| Configuration | No Hammer |
| Standard | Mil-Spec |
| Compatibility | Most Mil-Spec AR-15 Upper Receivers |
| Assembly | Fully Assembled |
| Caliber | 5.56 NATO / .223 Rem |
| Finish | Matte Nickel Boron |
| Country of Origin | USA |
Frequently Asked Questions
What does "No Hammer" mean, and do I need a separate hammer?
The "No Hammer" designation means this BCG ships without a hammer installed. This configuration is ideal if you already have a hammer from a mil-spec fire control group, are upgrading to a drop-in trigger assembly, or are selectively replacing worn components. You will need a compatible mil-spec hammer installed in your lower receiver for the rifle to function properly.
Does the EXO Nickel Boron coating really eliminate the need for lubrication?
FailZero's EXO Nickel Boron technology provides a permanent dry lubricity that allows the BCG to function reliably with minimal or no added lubrication in normal conditions. While many shooters run it completely dry, applying a light coat of oil in extreme cold, sandy, or high-volume shooting environments is still considered good practice to maximize longevity and performance.
Will this BCG fit my existing AR-15 upper receiver?
Yes — this BCG is built to mil-spec dimensions, making it compatible with the vast majority of standard AR-15 upper receivers chambered in 5.56 NATO or .223 Remington. It is not designed for large-frame AR-10 or .308 platforms. If you are running a non-standard or proprietary upper, verify your manufacturer's BCG compatibility specifications before purchasing.
