Faxon 5.56 9310 Bolt Nitride Black

Specs

• Model Bolt
• Caliber 5.56 NATO
• Fits AR-15
• Finish Nitride
• Black FF556BCNITRIDE Seeing MIL-SPEC as just the starting point
• Faxon set out to ensure the best options are available for their demanding customers.

Key points

• 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 phosphated bolts
• 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