Faxon Firearms, Bolt Carrier Group, QPQ Nitride, 7.62x39 Type 1

The Faxon Superfinished 7.62x39 Type 1 Bolt Carrier Group (Nitride) is engineered to deliver reliable performance in AR-15 rifles chambered for 7.62x39. Treating “MIL-SPEC” as the baseline, Faxon refines materials, inspection, and finishing processes to meet the demands of shooters running this challenging cartridge.

This BCG features a .125 Type 1 bolt face machined from 9310 tool steel. The bolt is fully MPI tested, heat treated, and shot peened to MIL-SPEC standards. Bolt lugs are chamfered to promote reliable cycling—even with high-pressure loads and fast action speeds.

The bolt and carrier are treated with salt bath nitride to increase surface hardness, reduce friction, and provide superior corrosion resistance compared to traditional chrome or phosphate finishes. Faxon’s Superfinish further reduces fouling and enhances smoothness of operation.