Overview Reviews Product Description Black Rain Ordnance Left Hand Bolt Carrier Group 223Rem/556NATO, Biohazard Engraved, Nickel Boron Finish BRO-BCG-LH Product Videos Product Reviews Write a Review Write a Review × Black Rain Ordnance BLACK RAIN 223 BOLT CARRIER GRP LEFT Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *