I think Walt Kulek's book on ARs would suffice. I 've handled a couple of the M&P 10s and other than the size of the parts I don't see any appreciable differences. The word is that the hammer and trigger group are the same as the 5.56 rifles; a good thing. So I wouldn't worry much about it.

Iron sights are a thing of the past for me. This new Smith and an optic might put me back into .30 calibers again. If Magpuls start flowing again I will probably spring for one.

Every time my "betters" tell me why I shouldn't own something like this just increases the odds I will.

Molon Labe and all that.