Faxon 5.56 AR-15 Black Nitride 9310 Bolt

The Faxon 5.56 AR-15 Black Nitride 9310 Bolt is a replacement bolt for compatible AR-15 rifles using the 5.56 NATO/.223 bolt-face family. Faxon identifies the bolt material as 9310 steel and finishes it in black nitride. This is the bolt itself rather than a complete bolt carrier group, making it suitable when the existing carrier will be reused.

Correct fit depends on the barrel extension, cartridge family, and carrier system, so the bolt should be matched carefully to the intended AR-15 upper. A replacement bolt must also be checked for proper headspace with the barrel before the firearm is placed into service. The dark nitride treatment gives the part a straightforward service-style exterior.

This 5.56 Faxon bolt is useful for a compatible AR-15 that needs a bolt replacement without purchasing another carrier. The 9310 steel construction and 5.56 bolt face are the key specifications to compare against the existing setup. Browse more gun parts and accessories for complete carrier groups and related rifle parts.

• 9310 steel 5.56 NATO replacement bolt
• Fits compatible AR-15 carriers
• Black nitride bolt finish
• Bolt-only 5.56 service component