Fail Zero115648018
FailZero M16/M4 BCG, No Hammer, EXO Nickel Boron Coated, Black Finish FZ-M16/4-01-NH-BLACK $155.61$158.14
Availability: In Stock
The FailZero AR-15 BCG with EXO Nickel Boron coating is a no-hammer bolt carrier group built to run reliably in most mil-spec AR-15 upper receivers. The nickel boron finish on all critical parts eliminates the need for traditional lubrication—your rifle operates dry, stays clean longer, and resists the wear and corrosion that plague standard phosphate-coated groups. Drop it in and forget about constant cleaning and re-oiling; the coating does the work for you.
EXO Nickel Boron technology is a permanent surface treatment that bonds to the steel at the molecular level, not a fragile plating. This means it won't flake, chip, or wear off with use. Whether you're running suppressed fire, high-round-count training days, or duty cycles where downtime isn't an option, the durability and low-friction properties of this coating keep your bolt carrier group running smooth and fast.
This is a complete, fully assembled unit ready to install. The no-hammer configuration simplifies assembly and works with standard receivers. If you're upgrading an existing build, replacing a worn carrier, or building a new rifle that prioritizes reliability and minimal maintenance, the FailZero EXO offers genuine performance gains over mil-spec at a practical price point.
| Brand | FailZero |
| Product Type | Bolt Carrier Group (BCG) |
| Coating | EXO Nickel Boron |
| Finish | Black |
| Configuration | No Hammer |
| Compatibility | Mil-spec AR-15 uppers |
| Assembly Status | Fully assembled, ready to install |
| Model Number | FZ-AR15-01-NH-BLACK |
Yes, the FailZero AR-15 BCG is designed to work in most mil-spec AR-15 upper receivers. It's a standard, fully assembled unit ready to drop in.
No. The EXO Nickel Boron coating provides permanent dry lubricity, eliminating the need for traditional lubrication. Your rifle will run clean and smooth without regular oiling.
The no-hammer design simplifies assembly and works with standard AR-15 receivers. It's a straightforward, effective approach that reduces parts count during build.
EXO Nickel Boron is a permanent surface treatment bonded at the molecular level to the steel. Unlike traditional plating, it won't flake, chip, or wear off with heavy use, providing extreme durability and corrosion resistance across extended service.
SKU: 115647452 • Width: 3.25in • Height: 2.25in • Depth: 11.25in • Weight: 1oz
Availability: In Stock
The FailZero AR-15 BCG with EXO Nickel Boron coating is a no-hammer bolt carrier group built to run reliably in most mil-spec AR-15 upper receivers. The nickel boron finish on all critical parts eliminates the need for traditional lubrication—your rifle operates dry, stays clean longer, and resists the wear and corrosion that plague standard phosphate-coated groups. Drop it in and forget about constant cleaning and re-oiling; the coating does the work for you.
EXO Nickel Boron technology is a permanent surface treatment that bonds to the steel at the molecular level, not a fragile plating. This means it won't flake, chip, or wear off with use. Whether you're running suppressed fire, high-round-count training days, or duty cycles where downtime isn't an option, the durability and low-friction properties of this coating keep your bolt carrier group running smooth and fast.
This is a complete, fully assembled unit ready to install. The no-hammer configuration simplifies assembly and works with standard receivers. If you're upgrading an existing build, replacing a worn carrier, or building a new rifle that prioritizes reliability and minimal maintenance, the FailZero EXO offers genuine performance gains over mil-spec at a practical price point.
| Brand | FailZero |
| Product Type | Bolt Carrier Group (BCG) |
| Coating | EXO Nickel Boron |
| Finish | Black |
| Configuration | No Hammer |
| Compatibility | Mil-spec AR-15 uppers |
| Assembly Status | Fully assembled, ready to install |
| Model Number | FZ-AR15-01-NH-BLACK |
Yes, the FailZero AR-15 BCG is designed to work in most mil-spec AR-15 upper receivers. It's a standard, fully assembled unit ready to drop in.
No. The EXO Nickel Boron coating provides permanent dry lubricity, eliminating the need for traditional lubrication. Your rifle will run clean and smooth without regular oiling.
The no-hammer design simplifies assembly and works with standard AR-15 receivers. It's a straightforward, effective approach that reduces parts count during build.
EXO Nickel Boron is a permanent surface treatment bonded at the molecular level to the steel. Unlike traditional plating, it won't flake, chip, or wear off with heavy use, providing extreme durability and corrosion resistance across extended service.
SKU: 115647452 • Width: 3.25in • Height: 2.25in • Depth: 11.25in • Weight: 1oz