For those who can't/won't read the article, basically what he's saying is that he "needs" the AR-15 standard because it's the best engineered gun. It's equivale

For those who can't/won't read the article, basically what he's saying is that he "needs" the AR-15 standard because it's the best engineered gun. It's equivalent to saying that you "need" the LAMP stack because it's open source, modular, debugged, well supported, training is available, and everyone else knows how to use it.