Faxon Firearms Type 2 Bolt Features The Faxon Firearms Type 2 bolt is machined from 9310 tool steel a material chosen for its superior strength and fatigue resistance compared to standard 8620 bolts found in many factory rifles. This Type II bolt features a .136 inch co-bore bolt face specifically sized for SAAMI-spec 6.5 Grendel 6mm ARC 22 ARC and 338 ARC cartridges though it is not compatible with Faxon 7.62x39 barrels. Bolt lugs are chamfered at 45 degrees to promote reliable cycling even under higher pressure handloads and fast lightweight actions. Every bolt undergoes full mil-spec heat treatment and shot peening before being Magnetic Particle Inspected to confirm the material is sound and free of defects. A salt bath nitride treatment increases surface hardness while reducing friction giving the bolt excellent corrosion resistance that outperforms typical phosphate finishes over long-term use. The extractor is built from S7 tool steel and assembled with a spring silicone insert and Crane O-ring to support consistent reliable extraction shot after shot. This attention to material selection and inspection reflects Faxon s philosophy of treating mil-spec as a baseline rather than a target. For shooters building or upgrading a Grendel or ARC pattern AR-15 this Faxon Type 2 bolt offers a verified high-strength replacement. Faxon Firearms Type 2 Bolt Specifications Manufacturer: Faxon Firearms Model: Type 2 Type: Bolt Compatible Hosts: AR-15 Caliber: 6.5 Grendel / 6mm ARC / 22 ARC / 338 ARC Material: 9310 Tool Steel Finish: Nitride Extractor: S7 Tool Steel Color: Black Available At: GrabAGun