Faxon Firearms Bolt Carrier Group, 5.56NATO, Fits AR-15, Titanium Nitride PVD Coated Bolt Carrier and Gas Key, Gold, Salt Bath Nitrided Bolt, Black FF556BCGCNITRIDE-TiN

Seeing MIL-SPEC as just the starting point" they set out to ensure the best options are available for their demanding customers. 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 phosphasted 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.

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

TiN PVD Coated Carrier & Gas Key

S7 Extractor

Superfinished Carrier Body

Full Auto Compatible

Forward Assist Serrations

Finish:	Titanium Nitride
Manufacturer:	Faxon Firearms
Manufacturer part #:	FF556BCGCNITRIDE-TiN
Type:	Bolt Carrier Group
Sub Category:	Bolts & Bolt Carrier Groups
Color:	Gold