Product Description Battle Arms Development Bolt Carrier Group BAD-BCG-9MM, 9mm, Nitride Finish, Black BAD-BCG-9MM Battle Arms Development Bolt Carrier Group BAD-BCG-9MM, 9mm, Nitride Finish, Black BAD-BCG-9MM at Hinterland Outfitters $163.00 Buy Now Check Price on Amazon Check Price on eBay