ROS-BCG-001

Rosco Manufacturing Bolt Carrier Group556NATO/300 BlackoutFits AR-15Melonite FinishBlackFeatures:Carrier Material: 8620 SteelGas Key: 4130 Steel, attached with Grade 8 hardware, properly stakedCam Pin: Hardened 4340Firing Pin: 8740 Steel, Mil-Spec, Center-less ground…