Description The Faxon Firearms AR .308 Gen 2 Bolt Carrier Group is built to a higher standard than MIL-SPEC as a foundation, using upgraded materials and processes for improved durability and smoother operation. The bolt is manufactured from 9310 tool steel, and the full assembly is salt bath nitride treated to increase surface hardness and corrosion resistance versus typical chrome or phosphate finishes. Bolts are MPI tested to verify material integrity, and bolt lugs receive a 45° chamfer to promote reliable lock-up across a range of loads. The gas key is secured with grade 8 fasteners and fully staked for long-term service. Key Specifications The finish on the carrier is Salt Bath Nitride for enhanced surface hardness and corrosion resistance. The bolt is made from 9310 steel for increased strength under high stress. The product is a Bolt Carrier Group designed for AR .308 platforms (Gen 2). The visible exterior color is Black. All bolts are MPI tested (magnetic particle inspection) to ensure material soundness. Bolt lugs are chamfered 45 degrees to promote reliable locking with a variety of loads. Gas key fasteners are Grade 8 and the key is fully staked for retention. Carrier surfaces are superfinished to reduce friction and fouling for smoother operation. Manufacturer-reported compatibility includes 6.5 Creedmoor, .308 Win, and 8.6 Blackout as listed in product materials. Purpose-built for high-performance AR .308 builds and precision-oriented platforms, this Gen 2 BCG emphasizes longevity and reliable cycling through upgraded materials and finishing. Its combination of a 9310 tool steel bolt, salt bath nitride treatment, and quality control measures like MPI testing and gas key staking make it a practical choice for builders and technicians who prioritize durable components and smooth operation in demanding use cases.