Faxon AR-15 Bolt Assembly 7.62x39mm Type 1

Faxon Firearms Valkyrie Bolt Carrier .224 Valkyrie Nitrided Black FF224BCGCNITRIDE. Improvements include using 9310 tool steel for the bolt nitriding the assembly to increase surface hardness decrease resistance and have superior corrosion resistance compared to typical chrome and phosphated bolt carrier groups. All bolts are fully MPI tested to ensure the material is sound and without defects. Bolt lugs are chamfered 45 degrees to ensure reliable action for even the highest pressure hand loads and fast lightweight actions. Extractors are S7 Tool Steel. From there the extractor is sprung using the spring o-ring and silicone insert. Not Compatible w/ Faxon 6.5 Grendel Barrels) Detailed Specifications: 9310 Tool Steel Construction Full MIL-SPEC Heat Treatment Shot Peened to MIL-SPEC Magnetic Particle Inspection (MPI) Back of Lugs Chamfered for Reliability Spring Insert & "Crane" O-Ring Installed Salt Bath Nitrided S7 Tool Steel Extractor Specifications for Faxon Firearms Valkyrie Bolt Carrier Nitrided 1: Manufacturer: Faxon Firearms Finish: Black Nitride Fabric/Material: 9310 Steel Caliber: 7.62x39mm Hand: Ambidextrous Features of Faxon Firearms Valkyrie Bolt Type 1 Nitrided Bolt: 9310 Tool Steel Construction (Stronger than C158) Full MIL-SPEC Heat Treatment Shot Peened to MIL-SPEC Magnetic Particle Inspection (MPI) Back of Lugs Chamfered for Reliability Spring Insert & "Crane" O-Ring Installed QPQ - Salt Bath Nitrided Extractor: S7 Tool Steel Construction Fully Heat Treated Shot Peened Per MIL-SPEC QPQ - Salt Bath Nitrided Package Contents: Faxon Firearms Valkyrie Bolt Type 1 Nitrided Faxon Firearms FF76239GBCNITRIDE: Valkyrie Bolt Carrier .224 Valkyrie Nitrided Black FF224BCGCNITRIDE