The FailZero 6.5 Grendel bolt carrier group (BCG) is a fully assembled, drop-in upgrade for Mil-Spec upper receivers chambered in 6.5 Grendel (Type 2). Built around FailZero's EXO Nickel Boron (NiB) coating technology, this BCG eliminates the need for constant lubrication while resisting wear and corrosion far better than standard phosphate or chrome-lined carriers. If you're running a Grendel build for precision rifle work, hunting, or long-range training, a quality BCG is the backbone of reliability—and the NiB finish means less time cleaning, more time shooting.

The nickel boron treatment is applied to all critical components: the bolt, extractor, bolt carrier, cam pin, carrier key, and firing pin. That comprehensive coating creates permanent dry lubricity, so your rifle functions smoothly even in harsh conditions or after extended shooting sessions. The result is a carrier group that cycles cleaner, requires minimal maintenance, and outlasts standard mil-spec alternatives. Because this is a 6.5 Grendel–specific carrier (Type 2), it's engineered for the exact dimensions and timing your Grendel upper demands.

The no-hammer configuration means you'll install your own fire control group, giving you flexibility to tune trigger feel and reset to your preferences. Assembly is straightforward for anyone with basic gunsmithing experience, and once installed, you're ready to load and shoot. Whether you're a precision rifle competitor, a long-range hunter, or someone building a reliable 6.5 Grendel AR, this BCG delivers the durability and low-maintenance performance that EXO coating is known for.

Key Features

• Fully assembled and ready to install into Mil-Spec uppers chambered in 6.5 Grendel (Type 2)
• EXO Nickel Boron (NiB) coating on bolt, extractor, bolt carrier, cam pin, carrier key, and firing pin for permanent dry lubricity
• Reduced maintenance: functions clean with minimal lubrication requirement
• Superior wear and corrosion resistance compared to standard phosphate or chrome-lined carriers
• No-hammer design allows installation of your choice of fire control group

Specifications

Brand	FailZero
Chambering	6.5 Grendel (Type 2)
Compatibility	Mil-Spec upper receivers
Configuration	Bolt Carrier Group, no hammer included
Finish	EXO Nickel Boron (NiB)
Coated Components	Bolt, extractor, bolt carrier, cam pin, carrier key, firing pin
State	Fully assembled

Frequently Asked Questions

Will this BCG fit my 6.5 Grendel upper receiver?

This bolt carrier group is designed for Mil-Spec upper receivers chambered in 6.5 Grendel (Type 2). As long as your upper is mil-spec, this BCG will drop in and function. If you're unsure whether your upper is mil-spec, consult your receiver manufacturer or a gunsmith.

What's included, and what do I need to install separately?

The BCG arrives fully assembled and ready to install. However, this model does not include a hammer, so you'll need to install your own fire control group (hammer, trigger, sear, springs) into the lower receiver before shooting.

How does the Nickel Boron finish compare to standard phosphate?

EXO Nickel Boron coating provides permanent dry lubricity, meaning your rifle will function reliably with minimal or no added lubricant. It also resists wear and corrosion significantly better than traditional phosphate finishes, reducing maintenance and extending component lifespan—especially valuable in adverse conditions or during high-round-count sessions.

Is this BCG suitable for hunting or competition?

Yes. The 6.5 Grendel is popular for precision rifle hunting and long-range competition. This BCG's robust design and low-maintenance finish make it well-suited to both roles, though final performance depends on your complete rifle setup, ammunition, and skill.