Faxon Superfinished 5.56 M16 Bolt Carrier Group – Nitride

Category: Rifle Parts
Platform: AR15
Series: Bolt Carrier Groups
Caliber/Cartridge: 5.56 NATO
SKU: FF556BCGCNITRIDE  |  UPC: 816341020870
MSRP: $145.00

Why Choose Faxon Superfinished BCGs?

Faxon Bolt Carrier Groups are designed for consistent function in hard-use rifles—from high round-count training to competition and defensive builds. The bolt is MPI tested to verify material soundness, the gas key is secured with grade 8 fasteners and fully staked, and the assembly is built to maintain reliable action with modern triggers and full-auto fire control groups.

Key Features

• 9310 Tool Steel Bolt
• Salt Bath Nitrided Bolt & Carrier for hardness and corrosion resistance
• Superfinished Carrier Body to reduce friction and fouling
• Magnetic Particle Inspection (MPI) for quality assurance
• Full MIL-SPEC Heat Treatment and shot peened to MIL-SPEC
• Back of lugs chamfered for reliable cycling
• S7 Extractor
• Spring, insert, & “Crane” O-ring installed
• Full-auto compatible (M16 pattern) with forward assist serrations
• Gas key with grade 8 fasteners and full staking

Detailed Specifications

• 9310 Tool Steel Bolt
• 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 Bolt & Carrier
• S7 Extractor
• Superfinished Carrier Body
• Full Auto Compatible
• Forward Assist Serrations