HK Heckler & Koch, $210.00 Delivered Via USPS Media Mail, The Gray Room Book, Unopened and in New Condition. Out of my HK Collection, Really nice book that contain Many great pictures of all significant HK guns (rifles, handguns, SMG, etc.). If you're looking to a good read, do not get this book, get the HK History Book. This is a photo only book. The author Provided the title of the gun, caliber, and length/weight of the gun. This book does not have the newer P30's and HK45's. There are two guns in this book that were not marketed by HK: 2 variations of the Benelli M4 (or M1014). Joint project between HK and Benelli/Beretta.