The Faxon Firearms 6.5 Grendel Type 2 Complete Bolt Carrier Group (BCG) is a precision-engineered rifle part built for shooters who demand reliability and durability in an intermediate cartridge platform. Built around a Type II (.136") bolt machined from 9310 tool steel, this BCG goes beyond mil-spec baseline with a salt bath nitriding process that hardens the bolt and carrier while resisting corrosion far better than traditional chrome or phosphate finishes. Whether you're running hand-loaded ammunition at high pressure or pushing a lightweight action hard, the 45-degree chamfered bolt lugs are designed to cycle reliably under stress.

Every bolt undergoes full magnetic particle inspection (MPI) testing to catch material defects before they become failures downrange. The assembly comes fully assembled with the extractor, spring, insert, and o-ring already installed, so you can drop it straight into your receiver. The S7 extractor and shot-peened finish meet MIL-SPEC standards, but the combination of 9310 steel, nitriding, and precision machining makes this carrier a step above generic mil-spec replacements—especially valuable if you're running a 6.5 Grendel rifle hard or building a precision rifle on a non-standard receiver.

If you're upgrading from a stock carrier or building a new 6.5 Grendel rifle, this Faxon BCG delivers the material science and QC that translates to fewer stoppages and longer service life. It's the kind of parts-bin detail that separates a reliable shooter from one that's always troubleshooting.

Key Features

• Type II (.136") bolt machined from 9310 tool steel for superior strength and wear resistance
• Salt bath nitriding for increased hardness, reduced friction, and excellent corrosion resistance
• 45-degree chamfered bolt lugs for reliable cycling under high pressure and rapid fire
• Full MPI testing of all bolts to verify material integrity and eliminate defects
• MIL-SPEC shot peening and heat treatment for durability and consistency
• Complete assembly includes S7 extractor, spring, insert, and o-ring—ready to install

Specifications

Brand	Faxon Firearms
Product Type	Complete Bolt Carrier Group (BCG)
Caliber Compatibility	6.5 Grendel
Bolt Type	Type II (.136")
Bolt Material	9310 Tool Steel
Carrier Material	Hardened steel (salt bath nitrided)
Extractor	S7
Finish	Salt bath nitrided; MIL-SPEC shot peened
Heat Treatment	Full MIL-SPEC
Bolt Lug Design	45-degree chamfered
Quality Assurance	Magnetic particle inspection (MPI) tested
Assembly Status	Complete; spring, insert, and o-ring pre-installed

Frequently Asked Questions

What is a Type II bolt, and why does it matter for 6.5 Grendel?

A Type II bolt has a .136" diameter firing pin, which is the standard for intermediate rifle cartridges like 6.5 Grendel. Faxon's Type II design uses 9310 tool steel and 45-degree chamfered lugs to handle the pressures and cycling demands of the cartridge reliably, especially under rapid fire or hand-loaded ammunition at the high end of safe pressure.

Is this BCG ready to install out of the box?

Yes. The bolt carrier group comes fully assembled with the extractor, spring, insert, and o-ring already installed. You can drop it directly into your receiver.

How does nitriding compare to chrome or phosphate finishes?

Faxon uses salt bath nitriding on both the bolt and carrier, which increases surface hardness and decreases friction compared to standard chrome or phosphate finishes. Nitriding also delivers superior corrosion resistance, meaning your BCG will hold up better in wet or harsh conditions over the long term.

Does Faxon test every bolt before shipping?

Yes. Every bolt undergoes magnetic particle inspection (MPI) testing to ensure the material is sound and free of defects before the carrier is assembled and shipped.