BCM MK2 Upper Receiver Assembly, Flat Top, Black BCM4-UR-MK2 Out of stock. Check back later... $165.00 MSRP Price: $129.95 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info Shifting mass from non-critical to critical areas Enhanced rigidity Works with all USGI bolt carriers, charging handles and barrel assemblies 7075 T6 Aluminum UPC: 812526022448Manufacturer: Bravo Company USAModel: BCM4-UR-MK2Category: PartsOtherUpper receiverStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.