DD AR-15 Lite Rail Barrel Nut Wrench Out of stock. Check back later... Price: $11.00 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info Proprietary spanner wrench used to install Daniel Defense's AR15 Lite Rail system. UPC: 815604010016Manufacturer: Daniel DefenseModel: 16-002-02140140Category: ToolsOtherStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.