Faxon Firearms AR Bolt Complete 5.57 Black FF556BCNITRIDE. 56/300 Bolt. Faxon Firearms machined these Bolt Carrier Groups from 9310 tool steel with an S7 tool steel extractor for maximum durability. The Faxon Firearms AR-15 5.56/300 Nitrided Bolt is...
Faxon Firearms AR Bolt Complete 5.57 Black FF556BCNITRIDE. 56/300 Bolt. Faxon Firearms machined these Bolt Carrier Groups from 9310 tool steel with an S7 tool steel extractor for maximum durability. The Faxon Firearms AR-15 5.56/300 Nitrided Bolt is...