Check the listing for details. Blackheart Guide Book - M2 .50 Cal Machinegun. Condition: Like New. Listed at 4.00 USD. Item Sold AS IS Blackheart Guide Book - M2 .50 Cal Machinegun Blackheart Guide Book for the M2 .50 Cal Machinegun. These books cover a wide variety of topics related to the firearms including operation, disassembly, maintenance, ammunition, etc. These books are great for owners, operators, and bathroom readers alike. A must have for an M2 Owner! ISBN - 978-0-9800803-39 UPC - 853813004273 This Item Is In Used Condition. Please See Photos For Details. PLEASE CAREFULLY READ THE FOLLOWING:All sales are finalWe ONLY accept returns or exchanges for products damaged in transit or if the incorrect item was shipped to you Your satisfaction is our number one priority - we strive to take the best photos and give the most accurate description possible WHAT YOU SEE IS WHAT YOU GET Please ask any questions you may have prior to purchaseNo international shipping