Faxon Firearms FF556BCNITRIDE Bolt for AR-15, 5.56 NATO, Nitride Finish, Black

Crafted with 9310 tool steel as a superior starting point beyond standard MIL-SPEC requirements, ensuring exceptional strength and longevity for demanding shooting conditions. Undergoes a nitriding process to boost surface hardness, reduce friction, and provide outstanding corrosion resistance compared to traditional phosphated finishes. Each bolt is fully MPI (Magnetic Particle Inspection) tested to guarantee the material is free from defects and maintains structural integrity under high stress. Bolt lugs are precisely chamfered at 45 degrees, allowing for seamless operation with high-pressure hand loads and fast-action setups. Incorporates S7 Tool Steel extractors for added durability and reliability in various field conditions. Features a sprung extractor system with a spring, O-ring, and silicone insert for consistent extraction and smooth cycling.

Features:

• 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.

Specifications:

• Type: Bolt
• Description: 556NATO Bolt
• Manufacturer Part: FF556BCNITRIDE
• Color: Black
• Manufacturer: Faxon Firearms
• Sub Category: Bolts & Bolt Carrier Groups
• Finish: Nitride