Rise Armament Bolt Carrier Group, .223/5.56, Black Finish RA-1011-BLK
Specifications:

Type	Bolt Carrier Group
Model	AR15
Dimensions
Size	223 Remington/5.56 NATO
Material	4140 Steel
Action
Trigger
Safety
Thread Pattern
Finish	Black Nitride
Bolt Type
Hand
Hammer Type
Max Capacity