This is one of the more interesting by-ways of Custer scholarship. The cover does have a picture of one of the pair of English Adams Revolvers that are part of the surviving Custer armoury. As they survive it is unlikely that he was carrying them in the Greasy Grass fight.
The premise of this book, beside better known facts about the end of George Custer, is that many of the six companies of the Seventh Cavalry committed suicide rather than die valiantly that day. He marshals his facts, and I would like a survey of how many of the skeletons would show injuries congruent with self-inflicted head wounds. It is certainly a thing that Custer mythologists will have to deal with. ( )