Books on SR25/M110?

I recently read Nick Irving's book and was wondering if there are any other books by other authors that give much detail about AR10/Sr25/M110 use in the field. It's just so interesting to me as we have decades and decades of books about rifles as used by people who depended on them and as such it kind of etches in to the history thereof, for example the enormous reverence we have for the M1 Garand, the 03 Springfield, K98 Mauser, etc. The numbers of people who have used them is vastly lower than others by comparison, so it makes that information all the more interesting to me to see. Anyone know of some?

The ArmaLite AR-10: World's Finest Battle Rifle by Joseph Putnam Evans
Vickers Guide AR-15 Vol 1 & 2
Black Rifle II by Bartocci