Faxon Firearms FF556BCGCNITRIDE-NCR 5.56 NATO M16 BCG Nitride Chameleon PVD MPI
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The Faxon Firearms 5.56 NATO M16 Bolt Carrier Group (BCG) in Chameleon PVD is a premium AR-15/M16 upgrade built for smooth cycling, strong corrosion resistance, and dependable function under hard use. Faxon treats MIL-SPEC as a baseline, enhancing key wear surfaces and critical components for long-term reliability. The bolt is made from 9310 tool steel, fully heat treated, shot peened, and Magnetic Particle Inspected (MPI). The bolt and carrier are salt bath nitrided to increase surface hardness and improve corrosion resistance, while the carrier and gas key feature a color-shifting Chameleon PVD coating for added wear resistance and a distinctive finish.
Reliability-focused details include chamfered bolt lugs for consistent cycling, an S7 extractor, and a spring/insert/“Crane” O-ring installed. As an M16-pattern carrier, it is full-auto compatible, making it a strong choice for duty rifles, training carbines, and high-round-count setups where durability and ease of maintenance matter.
Product Highlights
- 9310 tool steel bolt with MIL-SPEC heat treatment, shot peening, and MPI testing for confidence in critical parts
- Salt bath nitride treatment on bolt and carrier enhances surface hardness and corrosion resistance
- Chameleon PVD coated carrier and gas key deliver a unique color-shifting finish with added wear resistance
- Chamfered bolt lugs plus extractor spring/insert/“Crane” O-ring installed to support reliable cycling
- M16-pattern, full-auto compatible carrier design for AR-15/M16 platforms
Specs
- Brand: Faxon Firearms
- Product Type: Bolt Carrier Group (BCG)
- Platform Compatibility: AR-15 / M16
- Caliber: 5.56 NATO
- Carrier Pattern: M16 (full-auto compatible)
- Bolt Material: 9310 tool steel
- Extractor Material: S7 tool steel
- Inspection: Magnetic Particle Inspection (MPI)
- Surface Treatment: Salt bath nitrided bolt & carrier
- Coating: Chameleon PVD coated carrier & gas key
- Manufacturer Part Number: FF556BCGCNITRIDE-NCR
- UPC: 816341024649
Specifications
- Manufacturer:
- Faxon Firearms
- Category:
- bolt-carrier-group
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- UPC:
- 8228876189818
- MPN:
- FF556BCGCNITRIDE-NCR
- Required Component:
- Yes
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$197.98
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