Failzero EXO Nickel Boron M-16 Bolt Carrier Group

Description

## Fail Zero Nickel Boron EXO Coated M-16 Bolt Carrier Group

If you’re looking for a top-quality [AR-15](https://daytonatactical.com/collections/ar-15-upper-build-assemblies/ar15-rifle-uppers-16-and-longer/) / M-16 bolt carrier group, look no further than the Failzero EXO Nickel Boron BCG. This Bolt Carrier Group is coated with Nickel Boron using a patented process that results in more boron content than any other coating on the market. Also, this makes for a more consistent and durable quality coating. And will provide excellent corrosion resistance and reduce friction for a smoother cycling action. Above All, the Fail zero is fully assembled and ready to drop into your mil spec upper receiver – no modification required. So, if you are looking for a high quality, reliable bolt carrier group that will provide years of trouble free service, the Fail zero EXO is the perfect choice.

### Failzero Nickel Boron BCG Specifications:

– Mil spec M-16 Bolt Carrier Group
– EXO Nickel Boron coated
– Carrier, Bolt, Extractor, Cam Pin, gas key, and firing pin coated
– also, fits all M4, AR-15, and M-16 Mil-Spec Uppers
– Full Auto Style Cut Carrier
– Compatible Calibers are .223 , 5.56 , 300 Blackout
– Made in the USA
– SKU: FZ-M16-NH

**WARNING:** This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: [**www.P65Warnings.ca.gov**](https://www.p65warnings.ca.gov/)

The FailZero EXO nickel boron coating is applied to every contact surface of the bolt carrier group using a proprietary electroless process that bonds the finish to the metal at the molecular level — producing a surface that is harder than chrome and more slippery than PTFE. The EXO surface is genuinely self-lubricating, reducing friction between the carrier and the upper receiver and between the bolt and barrel extension throughout the cycling cycle without requiring oil or grease to maintain smooth operation. This self-lubricating property is particularly valuable in high-round-count situations or environments where re-lubrication opportunities are limited, as the BCG continues to cycle smoothly even as lubricant burns off or is displaced by fouling. Carbon and fouling shed from the EXO surface more readily than from a standard phosphate finish, making cleaning significantly faster and allowing the BCG to maintain function with less maintenance between range sessions or field use. The BCG is built to mil-spec dimensions and is compatible with standard AR-15 and M16 pattern upper receivers. For AR-15 shooters who want the long-term maintenance, friction, and corrosion benefits of nickel boron coating over a standard phosphate BCG, the FailZero EXO bolt carrier group is a proven option across defensive, competition, and general-purpose builds.