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- Verified Buyer
All the Collector Grade Publications offerings are top-notch, altho' they can become a bit dull in places where they delve into the sort of trivia only the history/collector/trivia nerds can enjoy. ;-)If you're interested in the HK91/G3/CETME roller-locking firearms, then you probably owe it to yourself to at least read this once [I got a copy via interlibrary loan first, so I could be sure I wanted to spend the money on adding a copy to my personal library.]R. Blake Stevens' "Full Circle" is another masterful reference work for firearms enthusiasts, dealing with the development in Germany of the roller locked operating system during the 1939-1945 war. Stevens' works are a wealth of archival material, illustrations and correspondence from the people involved, and this one shines. Ludwig Vorgrimler was the developer of the system, which was used on prototypes during the war, and then adopted by the Spanish design consortium CETME after the war for the 7.62 rifle which was eventually morphed into the Heckler and Koch G3 battle rifle in 1958, and HK have based their product line on various roller locked weapons, both handguns (P9S, various MP5 variants) and rifles (Models 91, 93, 94, etc) since that time. A great addition to any enthusiast's library!This book leaves no stone unturned when it comes to Roller locking, or rather half locked roller delayed blow back.Everything in the developmental history of this system from the early G43/K43 conversions to the Gerat06 & Gerat06(H) to the HK family of weapon systems is discussed in almost exhausting detail.My only real issue with the book is the layout of the text is a tad bit confusing at first, as it's hard to tell what is main body text and what is captions for the supplied pictures/illustrations. Aside from that, an excellent book indeed, well worth the money for sure!Beautiful rare book I purchased this at the recommendation of Ian McCollum, and I'm glad I got one before they are all gone. The content is equally rare, I will slowly enjoy each page, full of relevant details, illustrations, and photographs.Technical tour de force. If you want to know about the HK genius this is the book.Very detailed book. I learned a lot about the roller-locker system. Lots of history. Patent descriptions, etc. Lots of pictures of guns that I've never seen before.Good history of the roller lock system starting with a brief reference to MG42 then up to Heckler and Koch, the travels of the design after WW2My Husband likes the book very muchThank you
