Faxon Firearms Type 1 AR-15 Bolt Carrier Group

Type 1 compatibility refers to the specific bolt face depth designed for 7.62x39mm AR-15 builds. It is crucial to verify your barrel's bolt requirements before installation, as using a Type 1 bolt with a Type 2 barrel—or vice versa—will cause significant headspace issues.

9310 steel is often chosen for high-performance bolt carrier groups because it offers a higher core strength and better fatigue resistance than standard Carpenter 158. This makes it particularly well-suited for the increased pressure and bolt thrust associated with the 7.62x39mm cartridge.

The black nitride finish creates a surface that is harder and more corrosion-resistant than traditional phosphate coatings. It also provides a naturally slick surface, which reduces friction during the cycling process and makes the bolt significantly easier to clean.

No, this bolt carrier group is specifically engineered for the 7.62x39mm caliber. The bolt face is machined to accommodate the larger rim diameter of the 7.62x39mm cartridge and will not function with 5.56 NATO or .223 Remington ammunition.

Yes, this unit arrives fully assembled with the bolt, carrier, gas key, and firing pin installed. It is ready for immediate installation into a compatible upper receiver, though we always recommend verifying proper headspace before live-fire use.