Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Must Have If You Own An AR-15

Good book with very good information. I still haven't found the "ONE" M-16/AR-15 book but this goes on the shelf. I'd like to have seen parts guides & photos in color. I would encourage the author to contact and talk to some of the Bravo 1/9 Marines who were on Operation Buffalo with regard to his downplaying the problems with early M-16s in Vietnam.