6.5 Grendel Black Nitride Bolt Carrier Group - MPI

6.5 Grendel Black Nitride Bolt Carrier Group

This 6.5 Grendel BCG can be used for Grendel chambered AR barrels. The MPI bolt is made from enhanced 9310 steel and is properly heat treated to exacting specifications. The bolt is shop-peened and magnetic particle inspected. The 9310 6.5 AR15 bolt comes finished in black nitride and includes a Viton O-Ring.

• Bolt
• Machined from 9310 tool steel
• Heat treated to military specifications
• Shot Peened
• MPI
• Black Nitride Finish
• Extractor
• Heat treated to military specifications
• Shot peened
• Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
• Black Nitride Finish
• Cam Pin
• Machined to Mil Spec
• Ground to meet military required tolerances
• Black Nitride Finish
• Firing Pin
• Built to Mil Spec