Tiger Rock AR-15 Bolt Carrier Group (BCG) Assembly

Each of Mil-Spec Bolt Carrier Group BCG Assemblies feature full-auto capability, a shot peened MPI Bolt, 8620 Gas Carrier and Gas Key fastened with hardened Grade 8 fasteners. Specifications for Tiger Rock AR-15 Bolt Carrier Group (BCG) Assembly: Manufacturer: Tiger Rock Fabric/Material: Heat Treated Steel Cartridge: 5.56x45mm NATO, .223 Remington Gun Make: AR Platform Gun Model: M16, AR-15 Condition: New Carrier Material: 8620 Steel Features of Tiger Rock AR-15 Bolt Carrier Group BCG Assembly: M16 Style (Full Auto) Mil-Spec Precision Machined 8620 Gas Carrier Package Contents: Tiger Rock AR-15 Bolt Carrier Group Assembly